Correction - Fitch Affirms 60 Classes from 4 CSFB HEMT Transactions.

NEW YORK -- This is a correction for a previous message. It changes information in the 4th paragraph.

Fitch affirms all classes from the following Credit Suisse First Boston (CSFB) Mortgage Securities Corp. Home Equity Mortgage Trust (HEMT) transactions:

Series 2005-2

-- Classes A-1, A-2, A-3, A-R, A-RL affirmed at 'AAA';

-- Class M-1 affirmed at 'AA+';

-- Class M-2 affirmed at 'AA';

-- Class M-3 affirmed at 'AA-';

-- Class M-4 affirmed at 'A+';

-- Class M-5 affirmed at 'A';

-- Class M-6 affirmed at 'A-';

-- Class M-7 affirmed at 'BBB+';

-- Class M-8 affirmed at 'BBB';

-- Class M-9 affirmed at 'BBB-';

-- Class B-1 affirmed at 'BB+';

-- Class B-2 affirmed at 'BB'.

Series 2005-3

-- Classes A-1 and P affirmed at 'AAA';

-- Class M-1 affirmed at 'AA+';

-- Class M-2 affirmed at 'AA';

-- Class M-3 affirmed at 'A+';

-- Class M-4 affirmed at 'A';

-- Class M-5 affirmed at 'A-';

-- Class M-6 affirmed at 'BBB+';

-- Class M-7 affirmed at 'BBB';

-- Class M-8 affirmed at 'BBB-';

-- Class B-1 affirmed at 'BB+';

-- Class B-2 affirmed at 'BB'.

Series 2005-4

-- Class A-1, A-2A, A-2B, A-3 and A-4 affirmed at 'AAA';

-- Class M-1 affirmed at 'AA+';

-- Class M-2 affirmed at 'AA';

-- Class M-3 affirmed at 'AA-';

-- Class M-4 affirmed at 'A+';

-- Class M-5 affirmed at 'A';

-- Class M-6 affirmed at 'A-';

-- Class M-7 affirmed at 'BBB+';

-- Class M-8 affirmed at 'BBB';

-- Class M-9F and M9-A affirmed at 'BBB-';

-- Class B-1 affirmed at 'BBB-';

-- Class B-2 affirmed at 'BB+'.

Series 2005-5

-- Class A-1A, A-1F1, A-1F2, A-2A and A-2F affirmed at 'AAA';

-- Class M-1 affirmed at 'AA+';

-- Class M-2 affirmed at 'AA';

-- Class M-3 affirmed at 'AA-';

-- Class M-4 affirmed at 'A+';

-- Class M-5 affirmed at 'A';

-- Class M-6 affirmed at 'A-';

-- Class M-7 affirmed at 'BBB+';

-- Class M-8 affirmed at 'BBB';

-- Class M-9 affirmed at 'BBB-';

-- Class B-1 affirmed at 'BB+'.

The collateral for the aforementioned series consists primarily of closed-end, fixed-rate loans secured by second liens on residential properties. These mortgage loans were previously purchased by DLJ Mortgage Capital in secondary market transactions from various underlying sellers and deposited into the trusts by Credit Suisse First Boston Mortgage Securities Corporation.

The affirmations affect approximately $1.29 billion in outstanding certificates and reflect adequate relationships of credit enhancement to future loss expectations.

The trusts, seasoned 5 to 14 months, have growing overcollateralization (OC) structures which rely on the remaining excess spread after losses to build the OC to their target amounts. Although the OC amount is continuing to build for each of trusts (ranging between 3.07% and 5.27% of the original collateral balances), the faster-than-expected prepayments have caused a decline in the monthly available excess spread resulting in slow growth of the OC amount.

Due to the rapid prepayments and the resulting impact of excess spread, Fitch currently does not expect the OC to reach the target amounts for each trust listed above prior to the stepdown date. However, Fitch currently expects that all of the trusts will pass their respective performance trigger tests and stepdown 36 months after issuance and that all will maintain their OC target amounts after the stepdown date. For all transactions listed above, the stepdown date is defined as the earlier of the distribution date 36 months after issuance or the first distribution date on which the senior enhancement percentage is greater than or equal to the senior specified enhancement percentage.

With the exception of Series 2005-2, all the trusts are being serviced by Wilshire Credit Corp. (rated 'RPS1-' by Fitch) and Ocwen Financial Corp. (rated 'RPS2' by Fitch). Series 2005-2 is being serviced IndyMac Bank, FSB (rated 'RPS2+' by Fitch) in addition to Wilshire.

Further information regarding current delinquency, loss and credit enhancement statistics is available on the Fitch Ratings web site at 'www.fitchratings.com'.

Fitch's rating definitions and the terms of use of such ratings are available on the agency's public site, 'www.fitchratings.com'. Published ratings, criteria and methodologies are available from this site, at all times. Fitch's code of conduct, confidentiality, conflicts of interest, affiliate firewall, compliance and other relevant policies and procedures are also available from the 'Code of Conduct' section of this site.