Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust


*CONTACT INFORMATION*

Depositor	WaMu Asset Acceptance Corp.
	1301 Second Avenue
	Seattle, WA 98101

Seller / Servicer	Washington Mutual Bank
	1301 Second Avenue
	Seattle, WA 98101

Trustee	Citibank, N.A.
	388 Greenwich Street, 14th Floor
	New York, NY 10013


*CONTENTS*

Distribution Summary	2

Distribution Summary (Factors)	3

Interest Distribution	4

Principal Distribution	5

Reconciliation Detail	6

Collateral Summary	7

Delinquency Information	10

Standard Prepayment and Default Information	14

Credit Enhancement	15

Distribution Waterfall Detail	16

Other Information	19

Loan Level Detail	23


Deal Contact:	Valerie Delgado	Citibank, N.A.
	valerie.delgado@citi.com	Agency and Trust
	Tel: (949) 250-6464	388 Greenwich Street, 14th Floor
	Fax: (949) 250-6450	New York, NY 10013

Reports Available at www.sf.citidirect.com

Page 1 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Distribution Summary

DISTRIBUTION IN DOLLARS


Class	Original Balance	Prior Principal Balance	Pass- Through Rate	Accrual Day Count	Accrual Dates	Interest Distributed	Principal Distributed	Total Distributed	Deferred Interest	Realized Loss	Current Principal Balance
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)=(7+8)	(10)	(11)	(12)=(3-8+10-11)
IA	372,475,000.00	356,910,270.45	5.097500%	32 / 360	10/25 - 11/25	1,617,200.09	2,743,544.86	4,360,744.95	0.00	0.00	354,166,725.59
IIA1	148,430,000.00	129,443,459.95	4.962500%	32 / 360	10/25 - 11/25	570,989.48	1,863,197.14	2,434,186.62	0.00	0.00	127,580,262.81
IIA2	51,418,000.00	51,418,000.00	5.042500%	32 / 360	10/25 - 11/25	230,466.90	0.00	230,466.90	0.00	0.00	51,418,000.00
IIA3	85,451,000.00	85,451,000.00	5.112500%	32 / 360	10/25 - 11/25	388,327.32	0.00	388,327.32	0.00	0.00	85,451,000.00
IIA4	33,059,000.00	33,059,000.00	5.162500%	32 / 360	10/25 - 11/25	151,704.08	0.00	151,704.08	0.00	0.00	33,059,000.00
IIA5	200,000,000.00	188,072,207.99	5.122500%	32 / 360	10/25 - 11/25	856,355.45	1,170,504.36	2,026,859.81	0.00	0.00	186,901,703.63
M1	53,588,000.00	53,588,000.00	5.212500%	32 / 360	10/25 - 11/25	248,291.07	0.00	248,291.07	0.00	0.00	53,588,000.00
M2	37,454,000.00	37,454,000.00	5.252500%	32 / 360	10/25 - 11/25	174,868.56	0.00	174,868.56	0.00	0.00	37,454,000.00
M3	21,896,000.00	21,896,000.00	5.372500%	32 / 360	10/25 - 11/25	104,565.56	0.00	104,565.56	0.00	0.00	21,896,000.00
M4	19,015,000.00	19,015,000.00	5.672500%	32 / 360	10/25 - 11/25	95,877.86	0.00	95,877.86	0.00	0.00	19,015,000.00
M5	19,015,000.00	19,015,000.00	5.922500%	32 / 360	10/25 - 11/25	100,103.41	0.00	100,103.41	0.00	0.00	19,015,000.00
M6	14,982,000.00	14,982,000.00	6.372500%	32 / 360	10/25 - 11/25	84,864.71	0.00	84,864.71	0.00	0.00	14,982,000.00
M7	16,134,000.00	16,134,000.00	7.372500%	32 / 360	10/25 - 11/25	105,731.48	0.00	105,731.48	0.00	0.00	16,134,000.00
M8	10,948,000.00	10,948,000.00	7.372500%	32 / 360	10/25 - 11/25	71,745.89	0.00	71,745.89	0.00	0.00	10,948,000.00
M9	16,134,000.00	16,134,000.00	7.372500%	32 / 360	10/25 - 11/25	105,731.48	0.00	105,731.48	0.00	0.00	16,134,000.00
C	52,430,151.45	52,435,530.94	28.661081%	30 / 360	10/01 - 10/31	1,252,382.52	0.00	1,252,382.52	0.00	0.00	52,435,530.94
P	100.00	100.00	0.000000%	30 / 360		46,633.08	0.00	46,633.08	0.00	0.00	100.00
R	0.00	0.00	0.000000%	-		0.00	0.00	0.00	0.00	0.00	0.00
RCX	0.00	0.00	0.000000%	-		0.00	0.00	0.00	0.00	0.00	0.00
RPX	0.00	0.00	0.000000%	-		0.00	0.00	0.00	0.00	0.00	0.00
Totals	1,152,429,251.45	1,105,955,569.33				6,205,838.94	5,777,246.36	11,983,085.30	0.00	0.00	1,100,178,322.97

Reports Available at www.sf.citidirect.com

Page 2 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Distribution Summary (Factors)

PER $1,000 OF ORIGINAL BALANCE


Class	CUSIP	Record Date	Prior Principal Balance	Interest Distributed	Principal Distributed	Total Distributed	Deferred Interest	Realized Loss	Current Principal Balance
			(3/2 x 1000)	(7/2 x 1000)	(8/2 x 1000)	(9/2 x 1000)	(10/2 x 1000)	(11/2 x 1000)	(12/2 x 1000)
IA	93364EAA2	11/23/2007	958.212687	4.341768	7.365715	11.707484	0.000000	0.000000	950.846971
IIA1	93364EAB0	11/23/2007	872.084214	3.846860	12.552699	16.399560	0.000000	0.000000	859.531515
IIA2	93364EAC8	11/23/2007	1,000.000000	4.482222	0.000000	4.482222	0.000000	0.000000	1,000.000000
IIA3	93364EAD6	11/23/2007	1,000.000000	4.544444	0.000000	4.544444	0.000000	0.000000	1,000.000000
IIA4	93364EAE4	11/23/2007	1,000.000000	4.588889	0.000000	4.588889	0.000000	0.000000	1,000.000000
IIA5	93364EAF1	11/23/2007	940.361040	4.281777	5.852522	10.134299	0.000000	0.000000	934.508518
M1	93364EAG9	11/23/2007	1,000.000000	4.633333	0.000000	4.633333	0.000000	0.000000	1,000.000000
M2	93364EAH7	11/23/2007	1,000.000000	4.668889	0.000000	4.668889	0.000000	0.000000	1,000.000000
M3	93364EAJ3	11/23/2007	1,000.000000	4.775555	0.000000	4.775555	0.000000	0.000000	1,000.000000
M4	93364EAK0	11/23/2007	1,000.000000	5.042222	0.000000	5.042222	0.000000	0.000000	1,000.000000
M5	93364EAL8	11/23/2007	1,000.000000	5.264444	0.000000	5.264444	0.000000	0.000000	1,000.000000
M6	93364EAM6	11/23/2007	1,000.000000	5.664445	0.000000	5.664445	0.000000	0.000000	1,000.000000
M7	93364EAN4	11/23/2007	1,000.000000	6.553333	0.000000	6.553333	0.000000	0.000000	1,000.000000
M8	93364EAP9	11/23/2007	1,000.000000	6.553333	0.000000	6.553333	0.000000	0.000000	1,000.000000
M9	93364EAQ7	11/23/2007	1,000.000000	6.553333	0.000000	6.553333	0.000000	0.000000	1,000.000000
C		10/31/2007	1,000.102603	23.886685	0.000000	23.886685	0.000000	0.000000	1,000.102603
P		10/31/2007	1,000.000000	466,330.800000	0.000000	466,330.800000	0.000000	0.000000	1,000.000000

Reports Available at www.sf.citidirect.com

Page 3 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Interest Distribution Detail

DISTRIBUTION IN DOLLARS


Class	Prior Principal Balance	Pass- Through Rate	Next Pass- Through Rate	Interest Accrual Day Cnt Fraction	Optimal Accrued Interest	Prior Unpaid Interest	Interest on Prior Unpaid Interest	Non-Recov. Interest Shortfall	Interest Due	Deferred Interest	Interest Distributed	Current Unpaid Interest
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)=(6)+(7)+(8)-(9)	(11)	(12)	(13)=(10)-(11)-(12)
IA	356,910,270.45	5.09750%	5.00813%	32 / 360	1,617,200.09	0.00	0.00	0.00	1,617,200.09	0.00	1,617,200.09	0.00
IIA1	129,443,459.95	4.96250%	4.87313%	32 / 360	570,989.48	0.00	0.00	0.00	570,989.48	0.00	570,989.48	0.00
IIA2	51,418,000.00	5.04250%	4.95313%	32 / 360	230,466.90	0.00	0.00	0.00	230,466.90	0.00	230,466.90	0.00
IIA3	85,451,000.00	5.11250%	5.02313%	32 / 360	388,327.32	0.00	0.00	0.00	388,327.32	0.00	388,327.32	0.00
IIA4	33,059,000.00	5.16250%	5.07313%	32 / 360	151,704.08	0.00	0.00	0.00	151,704.08	0.00	151,704.08	0.00
IIA5	188,072,207.99	5.12250%	5.03313%	32 / 360	856,355.45	0.00	0.00	0.00	856,355.45	0.00	856,355.45	0.00
M1	53,588,000.00	5.21250%	5.12313%	32 / 360	248,291.07	0.00	0.00	0.00	248,291.07	0.00	248,291.07	0.00
M2	37,454,000.00	5.25250%	5.16313%	32 / 360	174,868.56	0.00	0.00	0.00	174,868.56	0.00	174,868.56	0.00
M3	21,896,000.00	5.37250%	5.28313%	32 / 360	104,565.56	0.00	0.00	0.00	104,565.56	0.00	104,565.56	0.00
M4	19,015,000.00	5.67250%	5.58313%	32 / 360	95,877.86	0.00	0.00	0.00	95,877.86	0.00	95,877.86	0.00
M5	19,015,000.00	5.92250%	5.83313%	32 / 360	100,103.41	0.00	0.00	0.00	100,103.41	0.00	100,103.41	0.00
M6	14,982,000.00	6.37250%	6.28313%	32 / 360	84,864.71	0.00	0.00	0.00	84,864.71	0.00	84,864.71	0.00
M7	16,134,000.00	7.37250%	7.28313%	32 / 360	105,731.48	0.00	0.00	0.00	105,731.48	0.00	105,731.48	0.00
M8	10,948,000.00	7.37250%	7.28313%	32 / 360	71,745.89	0.00	0.00	0.00	71,745.89	0.00	71,745.89	0.00
M9	16,134,000.00	7.37250%	7.28313%	32 / 360	105,731.48	0.00	0.00	0.00	105,731.48	0.00	105,731.48	0.00
C	52,435,530.94	28.66108%	0.00000%	30 / 360	1,252,382.52	0.00	0.00	0.00	1,252,382.52	0.00	1,252,382.52	0.00
P	100.00	0.00000%	0.00000%	30 / 360	46,633.08	0.00	0.00	0.00	46,633.08	0.00	46,633.08	0.00
R	0.00	0.00000%	0.00000%	-	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
RCX	0.00	0.00000%	0.00000%	-	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
RPX	0.00	0.00000%	0.00000%	-	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Totals	1,105,955,569.33				6,205,838.94	0.00	0.00	0.00	6,205,838.94	0.00	6,205,838.94	0.00

Reports Available at www.sf.citidirect.com

Page 4 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Principal Distribution Detail

DISTRIBUTION IN DOLLARS


Class	Original Balance	Prior Principal Balance	Scheduled Principal Distribution	Unscheduled Principal Distribution	Accreted Principal	Current Realized Losses	Current Principal Recoveries	Current Principal Balance	Cumulative Realized Losses	Original Class (%)	Current Class (%)	Original Credit Support	Current Credit Support
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)=(3)-(4)-(5)+(6)-(7)+(8)	(10)	(11)	(12)	(13)	(14)
IA	372,475,000.00	356,910,270.45	214,981.83	2,528,563.03	0.00	0.00	0.00	354,166,725.59	0.00	32.32%	32.19%	22.70%	23.78%
IIA1	148,430,000.00	129,443,459.95	147,772.87	1,715,424.27	0.00	0.00	0.00	127,580,262.81	0.00	12.88%	11.60%	22.70%	23.78%
IIA2	51,418,000.00	51,418,000.00	0.00	0.00	0.00	0.00	0.00	51,418,000.00	0.00	4.46%	4.67%	22.70%	23.78%
IIA3	85,451,000.00	85,451,000.00	0.00	0.00	0.00	0.00	0.00	85,451,000.00	0.00	7.41%	7.77%	22.70%	23.78%
IIA4	33,059,000.00	33,059,000.00	0.00	0.00	0.00	0.00	0.00	33,059,000.00	0.00	2.87%	3.00%	22.70%	23.78%
IIA5	200,000,000.00	188,072,207.99	92,834.40	1,077,669.96	0.00	0.00	0.00	186,901,703.63	0.00	17.35%	16.99%	22.70%	23.78%
M1	53,588,000.00	53,588,000.00	0.00	0.00	0.00	0.00	0.00	53,588,000.00	0.00	4.65%	4.87%	18.05%	18.91%
M2	37,454,000.00	37,454,000.00	0.00	0.00	0.00	0.00	0.00	37,454,000.00	0.00	3.25%	3.40%	14.80%	15.50%
M3	21,896,000.00	21,896,000.00	0.00	0.00	0.00	0.00	0.00	21,896,000.00	0.00	1.90%	1.99%	12.90%	13.51%
M4	19,015,000.00	19,015,000.00	0.00	0.00	0.00	0.00	0.00	19,015,000.00	0.00	1.65%	1.73%	11.25%	11.78%
M5	19,015,000.00	19,015,000.00	0.00	0.00	0.00	0.00	0.00	19,015,000.00	0.00	1.65%	1.73%	9.60%	10.06%
M6	14,982,000.00	14,982,000.00	0.00	0.00	0.00	0.00	0.00	14,982,000.00	0.00	1.30%	1.36%	8.30%	8.69%
M7	16,134,000.00	16,134,000.00	0.00	0.00	0.00	0.00	0.00	16,134,000.00	0.00	1.40%	1.47%	6.90%	7.23%
M8	10,948,000.00	10,948,000.00	0.00	0.00	0.00	0.00	0.00	10,948,000.00	0.00	0.95%	1.00%	5.95%	6.23%
M9	16,134,000.00	16,134,000.00	0.00	0.00	0.00	0.00	0.00	16,134,000.00	0.00	1.40%	1.47%	4.55%	4.77%
C	52,430,151.45	52,435,530.94	0.00	0.00	0.00	0.00	0.00	52,435,530.94	0.00	4.55%	4.77%	0.00%	0.00%
Totals	1,152,429,151.45	1,105,955,469.33	455,589.10	5,321,657.26	0.00	0.00	0.00	1,100,178,222.97	0.00	100%	100%

Reports Available at www.sf.citidirect.com

Page 5 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Reconciliation Detail


*SOURCE OF FUNDS*
Interest Funds Available
Scheduled Interest	7,745,371.94
Uncompensated PPIS	0.00
Relief Act Interest Shortfall	0.00
Interest Adjustments	0.00
Interest Losses	(46,888.60	)
Stop Advance Interest	(50,816.66	)
Total Interest Funds Available:			7,647,666.68
Principal Funds Available
Scheduled Principal	455,589.10
Curtailments	78,759.59
Prepayments in Full	4,325,854.53
Net Liquidation Proceeds	(0.01	)
Repurchased Principal	0.00
Substitution Principal	0.00
Other Principal	0.00
Total Principal Funds Available:			4,860,203.21
Other Funds Available
Swap Contract Amount	0.00
Prepayment Penalties	46,633.08
Other Charges	0.00
Interest Coverage Account	0.00
Supplemental Interest Account	0.00
Reserve Fund	0.00
Total Other Funds Available:			46,633.08
Total Funds Available			12,554,502.97


*ALLOCATION OF FUNDS*
Scheduled Fees
Servicing Fee	458,560.83
Total Scheduled Fees:		458,560.83
Additional Fees, Expenses, etc.
Extraordinary Trust Fund Expenses	0.00
Other Expenses	0.00
Payment to the Swap Counterparty	112,856.84
Total Additional Fees, Expenses, etc.:		112,856.84
Distribution to Certificateholders
Interest Distribution	6,205,838.94
Principal Distribution	5,777,246.36
Total Distribution to Certificateholders:		11,983,085.30
Total Funds Allocated		12,554,502.97

Reports Available at www.sf.citidirect.com

Page 6 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Collateral Summary - Group 1


*ASSET CHARACTERISTICS*

	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		481,853,267.83			466,289,255.16			463,893,638.76

Loan Count		2,430			2,361			2,348

Weighted Average Coupon Rate (WAC)		8.406454	%		8.399797	%		N/A

Net Weighted Average Coupon Rate (Net WAC)		7.906454	%		7.899797	%		N/A

Weighted Average Remaining Term (WART in months)		361			356			355


*AVAILABLE PRINCIPAL*

Scheduled Principal	214,981.83
Curtailments	24,801.01
Principal Prepayments	2,068,269.25
Net Liquidation Proceeds	0.00
Repurchased Principal	0.00
Subsequent Recoveries	0.00
TOTAL AVAILABLE PRINCIPAL	2,308,052.09

Current Realized Losses	92,088.99
Current Bankruptcy Losses	0.00
Cumulative Realized Losses	92,088.99


*AVAILABLE INTEREST*

Scheduled Interest		3,263,945.81

Less:	Servicing Fee	194,170.30
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Non-Recoverable Advance	0.00
	Net Interest Adjustment	0.00
	Stop Advance Interest	2,701.62
	Interest Losses	4,524.68
TOTAL AVAILABLE INTEREST		3,062,549.21

Reports Available at www.sf.citidirect.com

Page 7 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Collateral Summary - Group 2


*ASSET CHARACTERISTICS*

	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		670,575,983.62			639,666,314.17			636,284,684.21

Loan Count		2,205			2,107			2,091

Weighted Average Coupon Rate (WAC)		8.434524	%		8.407058	%		N/A

Net Weighted Average Coupon Rate (Net WAC)		7.934524	%		7.907058	%		N/A

Weighted Average Remaining Term (WART in months)		359			354			353


*AVAILABLE PRINCIPAL*

Scheduled Principal	240,607.27
Curtailments	53,958.58
Principal Prepayments	2,257,585.28
Net Liquidation Proceeds	(0.01)
Repurchased Principal	0.00
Subsequent Recoveries	0.00
TOTAL AVAILABLE PRINCIPAL	2,552,151.12

Current Realized Losses	871,842.76
Current Bankruptcy Losses	0.00
Cumulative Realized Losses	871,842.76


*AVAILABLE INTEREST*

Scheduled Interest		4,481,426.13

Less:	Servicing Fee	264,390.53
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Non-Recoverable Advance	0.00
	Net Interest Adjustment	0.00
	Stop Advance Interest	48,115.04
	Interest Losses	42,363.92
TOTAL AVAILABLE INTEREST		4,126,556.64

Reports Available at www.sf.citidirect.com

Page 8 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Collateral Summary - Total


*ASSET CHARACTERISTICS*
	Cut-Off			Prior			Current

Aggregate Stated Principal Balance		1,152,429,251.45			1,105,955,569.33			1,100,178,322.97

Loan Count		4,635			4,468			4,439

Weighted Average Coupon Rate (WAC)		8.422787	%		8.403996	%		N/A

Net Weighted Average Coupon Rate (WAC)		7.922787	%		7.903996	%		N/A

Weighted Average Remaining Term (WART in months)		360			355			354


*AVAILABLE PRINCIPAL*

Scheduled Principal	455,589.10
Curtailments	78,759.59
Principal Prepayments	4,325,854.53
Net Liquidation Proceeds	(0.01)
Repurchased Principal	0.00
Subsequent Recoveries	0.00
TOTAL AVAILABLE PRINCIPAL	4,860,203.21

Current Realized Losses	963,931.75
Current Bankruptcy Losses	0.00
Cumulative Realized Losses	963,931.75


*AVAILABLE INTEREST*

Scheduled Interest		7,745,371.94

Less:	Servicing Fee	458,560.83
	Uncompensated PPIS	0.00
	Relief Act Interest Shortfall	0.00
	Non-Recoverable Advance	0.00
	Net Interest Adjustment	0.00
	Stop Advance Interest	50,816.66
	Interest Losses	46,888.60
TOTAL AVAILABLE INTEREST		7,189,105.85

Reports Available at www.sf.citidirect.com

Page 9 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Delinquency Information


*GROUP 1*
	DELINQUENT			BANKRUPTCY			FORECLOSURE			REO			TOTAL
Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count
			< 30	450,361.32	5	< 30	0.00	0	< 30	0.00	0	< 30	450,361.32	5
				0.097083%	0.2%		0.000000%	0.0%		0.0000%	0.0%		0.097083%	0.2%
30-59	21,891,950.66	102	30-59	219,530.18	1	30-59	0.00	0	30-59	0.00	0	30-59	22,111,480.84	103
	4.719175%	4.3%		0.047323%	0.0%		0.000000%	0.0%		0.000000%	0.0%		4.766498%	4.4%
60-89	12,470,555.84	56	60-89	467,878.30	2	60-89	0.00	0	60-89	0.00	0	60-89	12,938,434.14	58
	2.688236%	2.4%		0.100859%	0.1%		0.000000%	0.0%		0.000000%	0.0%		2.789095%	2.5%
90-119	8,501,511.47	35	90-119	0.00	0	90-119	73,836.88	1	90-119	0.00	0	90-119	8,575,348.35	36
	2.144750%	1.5%		0.0000	0.0%		0.015917%	0.0%		0.000000%	0.0%		1.848559%	1.5%
120-149	1,447,849.58	6	120-149	0.00	0	120-149	4,228,353.65	20	120-149	0.00	0	120-149	5,676,203.23	26
	0.312108%	0.3%		0.000000%	0.0%		0.911492%	0.9%		0.000000%	0.0%		1.223600%	1.1%
150-179	0.00	0	150-179	0	0	150-179	1868718	8	150-179	0.00	0	150-179	1,868,718.27	8
	0.000000%	0.0%		0.000000%	0.0%		0.402833%	0.3%		0.000000%	0.0%		1.223600%	0.3%
180+	137,607.37	1	180+	0.00	0	180+	249,721.27	1	180+	0.00	0	180+	387,328.64	2
	0.029664%	0.0%		0.000000%	0.0%		0.053832%	0.0%		0.000000%	0.0%		0.083495%	0.1%
Total	44,449,474.92	200	Total	1,137,769.80	8	Total	6,420,630.07	30	Total	0.00	0	Total	52,007,874.79	238
	9.581825%	8.5%		0.245265%	0.3%		1.384074%	1.3%		0.000000%	0.0%		11.211164%	10.1%

Principal and Interest Advances						3,075,251.76

Reports Available at www.sf.citidirect.com

Page 10 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Delinquency Information


*GROUP 2*
	DELINQUENT			BANKRUPTCY			FORECLOSURE			REO			TOTAL
Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count
			< 30	377,848.16	5	< 30	0.00	0	< 30	0.00	0	< 30	377,848.16	5
				0.059384%	0.2%		0.000000%	0.0%		0.0000%	0.0%		0.059384%	0.2%
30-59	34,608,997.22	96	30-59	0.00	0	30-59	0.00	0	30-59	0.00	0	30-59	34,608,997.22	96
	5.439232%	4.6%		0.000000%	0.0%		0.000000%	0.0%		0.000000%	0.0%		5.439232%	4.6%
60-89	21,684,267.83	63	60-89	0.00	0	60-89	0.00	0	60-89	0.00	0	60-89	21,684,267.83	63
	3.407951%	3.0%		0.000000%	0.0%		0.000000%	0.0%		0.000000%	0.0%		3.407951%	3.0%
90-119	27,242,563.34	72	90-119	511,958.19	2	90-119	0.00	0	90-119	0.00	0	90-119	27,754,521.53	74
	4.840293%	3.4%		0.0805	0.1%		0.000000%	0.0%		0.000000%	0.0%		4.361966%	3.5%
120-149	3,555,482.85	11	120-149	299,869.87	2	120-149	10,208,385.71	28	120-149	0.00	0	120-149	14,063,738.43	41
	0.558788%	0.5%		0.080461%	0.1%		1.604374%	1.3%		0.000000%	0.0%		2.210290%	2.0%
150-179	0.00	0	150-179	0	0	150-179	6902494	15	150-179	0.00	0	150-179	6,902,493.52	15
	0.000000%	0.0%		0.000000%	0.0%		1.084812%	0.7%		0.000000%	0.0%		2.210290%	0.7%
180+	0.00	0	180+	0.00	0	180+	0.00	0	180+	0.00	0	180+	0.00	0
	0.000000%	0.0%		0.000000%	0.0%		0.000000%	0.0%		0.000000%	0.0%		0.000000%	0.0%
Total	87,091,311.24	242	Total	1,189,676.22	9	Total	17,110,879.23	43	Total	0.00	0	Total	105,391,866.69	294
	13.687476%	11.6%		0.186972%	0.4%		2.689186%	2.1%		0.000000%	0.0%		16.563634%	14.1%

Principal and Interest Advances							4,138,002.48

Reports Available at www.sf.citidirect.com

Page 11 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Delinquency Information


*GROUP TOTALS*
	DELINQUENT			BANKRUPTCY			FORECLOSURE			REO			TOTAL
Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count	Days	Balance	Count
			< 30	828,209.48	10	< 30	0.00	0	< 30	0.00	0	< 30	828,209.48	10
				0.075280%	0.2%		0.000000%	0.0%		0.000000%	0.0%		0.075280%	0.2%
30-59	56,500,947.88	198	30-59	219,530.18	1	30-59	0.00	0	30-59	0.00	0	30-59	56,720,478.06	199
	5.135617%	4.5%		0.019954%	0.0%		0.000000%	0.0%		0.000000%	0.0%		5.155571%	4.5%
60-89	34,154,823.67	119	60-89	467,878.30	2	60-89	0.00	0	60-89	0.00	0	60-89	34,622,701.97	121
	3.104481%	2.7%		0.042527%	0.0%		0.000000%	0.0%		0.000000%	0.0%		3.147008%	2.7%
90-119	35,744,074.81	107	90-119	511,958.19	2	90-119	73,836.88	1	90-119	0.00	0	90-119	36,329,869.88	110
	3.248935%	2.4%		0.046534%	0.0%		0.006711%	0.0%		0.000000%	0.0%		3.302180%	2.5%
120-149	5,003,332.43	17	120-149	299,869.87	2	120-149	14,436,739.36	48	120-149	0.00	0	120-149	19,739,941.66	67
	0.454775%	0.4%		0.027256%	0.0%		1.312218%	1.1%		0.000000%	0.0%		1.794249%	1.5%
150-179	0.00	0	150-179	0.00	0	150-179	8,771,211.79	23	150-179	0.00	0	150-179	8,771,211.79	23
	0.000000%	0.0%		0.000000%	0.0%		0.797254%	0.5%		0.000000%	0.0%		0.797254%	0.5%
180+	137,607.37	1	180+	0.00	0	180+	249,721.27	1	180+	0.00	0	180+	387,328.64	2
	0.012508%	0.0%		0.000000%	0.0%		0.022698%	0.0%		0.000000%	0.0%		0.035206%	0.0%
Total	131,540,786.16	442	Total	2,327,446.02	17	Total	23,531,509.30	73	Total	0.00	0	Total	157,399,741.48	532
	11.956315%	10.0%		0.211552%	0.4%		2.138881%	1.6%		0.000000%	0.0%		14.306748%	12.0%

Principal and Interest Advances							7,213,254.24

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Page 12 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Historical Delinquency Information


Distribution	1 Month		2 Month		3 + Month		Bankruptcy		Foreclosure		REO		Total ( 2+, BK, FC & REO )
Date	Balance	Cnt	Balance	Cnt	Balance	Cnt	Balance	Cnt	Balance	Cnt	Balance	Cnt	Balance	Cnt
11/26/2007	56,500,947.88	198	34,154,823.67	119	40,885,014.61	125	2,327,446.02	17	23,531,509.30	73	0.00	0	100,898,793.60	334
	5.136%	4.5%	3.104%	2.7%	3.716%	2.8%	0.212%	0.4%	2.139%	1.6%	0.000%	0.0%	9.171%	7.5%
10/25/2007	50,519,681.73	174	38,630,383.21	118	19,873,836.35	70	1,018,486.67	9	9,574,159.26	31	0.00	0	69,096,865.49	228
	4.568%	3.9%	3.493%	2.6%	1.797%	1.6%	0.092%	0.2%	0.866%	0.7%	0.000%	0.0%	6.248%	5.1%
09/25/2007	47,744,099.70	160	20,521,639.57	71	10,948,099.02	35	627,410.45	3	0.00	0	0.00	0	32,097,149.04	109
	4.300%	3.6%	1.848%	1.6%	0.986%	0.8%	0.057%	0.1%	0.000%	0.0%	0.000%	0.0%	2.891%	2.4%
08/27/2007	25,631,306.04	99	11,903,768.37	37	249,988.29	1	500,172.93	2	0.00	0	0.00	0	12,653,929.59	40
	2.294%	2.2%	1.065%	0.8%	0.022%	0.0%	0.045%	0.0%	0.000%	0.0%	0.000%	0.0%	1.133%	0.9%
07/25/2007	14,725,301.81	47	0.00	0	979,449.76	3	161,010.61	1	0.00	0	0.00	0	1,140,460.37	4
	1.304%	1.0%	0.000%	0.0%	0.087%	0.1%	0.014%	0.0%	0.000%	0.0%	0.000%	0.0%	0.101%	0.1%
06/25/2007	615,158.83	2	979,867.87	3	0.00	0	0.00	0	0.00	0	0.00	0	979,867.87	3
	0.054%	0.0%	0.085%	0.1%	0.000%	0.0%	0.000%	0.0%	0.000%	0.0%	0.000%	0.0%	0.085%	0.1%

Reports Available at www.sf.citidirect.com

Page 13 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Standard Prepayment and Default Information


Payment Date	Wtd. Avg. Age (Months)	Current Collateral Balance	Scheduled Principal	Unscheduled Principal	Liquidation Principal	SMM	CPR	PSA	MDR	CDR	SDA
26-Nov-2007	8.37	1,100,178,322.97	455,589.10	5,321,657.26	917,043.14	0.481%	5.626%	336%	0.083%	0.990%	59%
25-Oct-2007	7.37	1,105,955,569.33	456,669.12	3,828,497.64	0.00	0.345%	4.062%	275%	0.000%	0.000%	0%
25-Sep-2007	6.38	1,110,240,736.09	456,113.12	6,548,640.08	0.00	0.586%	6.814%	534%	0.000%	0.000%	0%
27-Aug-2007	5.38	1,117,245,489.29	457,183.58	11,715,657.75	0.00	1.038%	11.766%	1,094%	0.000%	0.000%	0%
25-Jul-2007	4.38	1,129,418,330.62	459,721.79	16,632,741.86	0.00	1.451%	16.091%	1,837%	0.000%	0.000%	0%
25-Jun-2007	3.43	1,146,510,794.27	459,403.96	5,459,053.22	0.00	0.474%	5.541%	807%	0.000%	0.000%	0%

SMM	(Single Month Mortality) = Unscheduled Principal / (Beginning Balance - Scheduled Principal)	MDR	(Monthly Default Rate) = Beginning Balance of Liquidated Asset / Total Beginning Balance
CPR	(Constant Prepayment Rate) = 1 - ((1-SMM)^12)	CDR	(Conditional Default Rate) = 1 - ((1-MDR)^12)
PSA	(Public Securities Association) = CPR / (min(.2% * Age, 6%))	SDA	(Standard Default Assumption) = CDR / (min(.2% * Age, 6%))

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Page 14 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Credit Enhancement


*Overcollateralization and Trigger Information*
Overcollateralization Target Amount			52,435,530.94		4.7661	%
Beginning Overcollateralization Amount			52,435,530.94
Overcollateralization Decrease Due to Realized Losses			(917,043.15	)
Overcollateralization Deficiency Amount	917,043.15
Excess Spread Available for Overcollateralization Increase	2,169,425.67
Overcollateralization Increase Amount			917,043.15
Excess Overcollateralization Amount	0.00
Principal Available for Overcollateralization Reduction	4,860,203.21
Overcollateralization Reduction Amount			0.00
Current Overcollateralization			52,435,530.94		4.7661	%

Current Credit Enhancement Percentage					23.7781	%
Are Stepdown Principal Distributions Allowed This Month?					No
(Has the Stepdown Date Occured and Are There No Trigger Events in Effect?)
Has the Stepdown Date Occured?			No
(Has the 3rd Anniversary Distribution Date Occurred and Does the Senior Enhancement Percentage Equal or Exceed the Target Percentage?)
3rd Anniversary Distribution Date	25-Jun-2010
Credit Enhancement Percentage per Stepdown Date definition	23.7781	%
Credit Enhancement Target Percentage	45.4000	%
Is a Trigger Event in Effect?			Yes
(Is a Delinquency Trigger Event in Effect or Is a Cumulative Realized Loss Trigger in Effect?)
Is a Delinquency Trigger Event in Effect?			Yes
(Does the Delinquency Percentage Exceed the Target Percentage?)
Delinquency Percentage	9.0759	%
Target Percentage (35.00% of the Credit Enhancement Percentage)	8.3223	%
Is a Cumulative Realized Loss Trigger Event in Effect?			No
(Does the Cumulative Loss Percentage Exceed the Target Percentage?)
Cumulative Loss Percentage	0.0836	%
Target Percentage	0.0000	%

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Page 15 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Waterfall Detail


*DISTRIBUTIONS*	Amount Distributed			Remaining Available Funds
Group I Interest Remittance Funds					3,062,549.21
Swap Counterparty, the Group I Net Swap Payment and any unpaid Group I Swap Termination Payment		(47,586.44	)		3,014,962.77
Swap Counterparty, the Group II Net Swap Payment and any unpaid Group II Swap Termination Payment		0.00			3,014,962.77
Final Maturity Reserve Trust, the Group I Final Maturity Reserve Amount		0.00			3,014,962.77
Final Maturity Reserve Trust, the Group II Final Maturity Reserve Amount		0.00			3,014,962.77
Class I-A Certificates, the Senior Interest Distribution Amount		(1,617,200.09	)		1,397,762.68
Class II-A Certificates, Any Remaining Unpaid Senior Interest Distribution Amount		0.00			1,397,762.68

Group II Interest Remittance Funds					4,126,556.64
Swap Counterparty, the Group II Net Swap Payment and any unpaid Group II Swap Termination Payment		(65,270.40	)		4,061,286.24
Swap Counterparty, the Group I Net Swap Payment and any unpaid Group I Swap Termination Payment		0.00			4,061,286.24
Final Maturity Reserve Trust, the Group II Final Maturity Reserve Amount		0.00			4,061,286.24
Final Maturity Reserve Trust, the Group I Final Maturity Reserve Amount		0.00			4,061,286.24
Class II-A Certificates, the Senior Interest Distribution Amount		(2,197,843.23	)		1,863,443.01
Class I-A Certificates, Any Remaining Unpaid Senior Interest Distribution Amount		0.00			1,863,443.01

Remaining Group I & II Interest Remittance Funds					3,261,205.69
Class M-1 Interest Distribution Amount		(248,291.07	)		3,012,914.62
Class M-2 Interest Distribution Amount		(174,868.56	)		2,838,046.06
Class M-3 Interest Distribution Amount		(104,565.56	)		2,733,480.50
Class M-4 Interest Distribution Amount		(95,877.86	)		2,637,602.64
Class M-5 Interest Distribution Amount		(100,103.41	)		2,537,499.23
Class M-6 Interest Distribution Amount		(84,864.71	)		2,452,634.52
Class M-7 Interest Distribution Amount		(105,731.48	)		2,346,903.04
Class M-8 Interest Distribution Amount		(71,745.89	)		2,275,157.15
Class M-9 Interest Distribution Amount		(105,731.48	)		2,169,425.67

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Page 16 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust


Group I Principal Remittance Amount Less Any OC Reduction Amount)			2,308,052.09
Class I-A Certificates	(2,308,052.09	)		0.00
Class II-A1 Certificates	0.00			0.00
Class II-A2 Certificates	0.00			0.00
Class II-A3 Certificates	0.00			0.00
Class II-A4 Certificates	0.00			0.00
Class II-A5 Certificates	0.00			0.00

Group II Principal Remittance Amount Less Any OC Reduction Amount)				2,552,151.12
Class II-A1 Certificates	(1,567,445.14	)		984,705.98
Class II-A2 Certificates	0.00			984,705.98
Class II-A3 Certificates	0.00			984,705.98
Class II-A4 Certificates	0.00			984,705.98
Class II-A5 Certificates	(984,705.98	)		0.00
Class I-A Certificates	0.00			0.00

Group I & II Remaining Principal Remittance Amount Less Any OC Reduction Amount)				0.00
Class M-1 Certificates	0.00			0.00
Class M-2 Certificates	0.00			0.00
Class M-3 Certificates	0.00			0.00
Class M-4 Certificates	0.00			0.00
Class M-5 Certificates	0.00			0.00
Class M-6 Certificates	0.00			0.00
Class M-7 Certificates	0.00			0.00
Class M-8 Certificates	0.00			0.00
Class M-9 Certificates	0.00			0.00

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Page 17 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust


Net Monthly Excess Cashflow			2,169,425.67
Class I-A Certificates, as Extra PDA	(435,492.77	)		1,733,932.90
Class II-A1 Certificates, as Extra PDA	(295,752.00	)		1,438,180.90
Class II-A2 Certificates, as Extra PDA	0.00			1,438,180.90
Class II-A3 Certificates, as Extra PDA	0.00			1,438,180.90
Class II-A4 Certificates, as Extra PDA	0.00			1,438,180.90
Class II-A5 Certificates, as Extra PDA	(185,798.38	)		1,252,382.52
Class M-1 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-2 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-3 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-4 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-5 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-6 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-7 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-8 Certificates, as Extra PDA	0.00			1,252,382.52
Class M-9 Certificates, as Extra PDA	0.00			1,252,382.52

To the Senior Certificates, any Interest Carryforward Amounts	0.00			1,252,382.52
To the Mezzanine Certificates, any Interest Carryforward Amounts	0.00			1,252,382.52
To the Mezzanine Certificates, the related Allocated Realized Loss Amount	0.00			1,252,382.52
To the Reserve Fund, any Net Wac Rate Carryover Amounts	0.00			1,252,382.52
To the Swap Counterparty, any unpaid Swap Termination Payment	0.00			1,252,382.52
To the Final Maturity Reserve Trust, the Supplemental Final Maturity Reserve Amount	0.00			1,252,382.52
To the Class C Certificates, the Interest Distribution Amount	(1,252,382.52	)		0.00
To the Class C Certificates, the Overcollateralization Reduction Amount	0.00			0.00
To the Class R Certificates, any remaining amounts	0.00			0.00

Prepayment Penalties				46,633.08
Class P Prepayment Penalties	(46,633.08	)		0.00
Distribution of Class P outstanding Certificate Principal Balance	0.00			0.00

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Page 18 of 23

Distribution Date:

Determination Date:

11/26/2007

11/15/2007

WaMu Asset-Backed Certificates

Series 2007-HE3 Trust

Other Information



Supplemental Interest Trust Account Information
Beginning Supplemental Interest Trust Account Balance			1,000.00
Deposits			112,856.84
Withdrawals			112,856.84
Ending Supplemental Interest Trust Account Balance			1,000.00

WaMu Asset-Backed Certificates, WaMu Series 2007-HE3 10-D