CSFB Series 2004-TFL2 Rated by Fitch Ratings.

NEW YORK -- Credit Suisse First Boston (CSFB) Mortgage Securities Corp., commercial mortgage pass-through certificates, series 2004-TFL2 are rated by Fitch Ratings as follows:

-- $495,000,000 class A-1, 'AAA';

-- $165,000,000 class A-2, 'AAA';

-- $832,000,000 class A-X(1), 'AAA';

-- $120,000,000 class A-Y(1), 'AAA';

-- $26,000,000 class B, 'AAA';

-- $23,000,000 class C, 'AA+';

-- $19,000,000 class D, 'AA';

-- $19,000,000 class E, 'AA-';

-- $19,000,000 class F, 'A+';

-- $16,500,000 class G, 'A';

-- $17,500,000 class H, 'A-';

-- $16,500,000 class J, 'BBB+';

-- $15,500,000 class K, 'BBB-';

-- $8,345,891 class L, 'BBB-';

(1) Notional amount, interest-only

All classes are privately placed pursuant to Rule 144A of the Securities Act of 1933. The certificates represent beneficial ownership interest in the trust, primary assets of which are 11 floating-rate loans having an aggregate principal balance of $840,345,891, as of the cutoff date. For a detailed description of Fitch's rating analysis, please see the report titled 'Credit Suisse First Boston Mortgage Securities Corp., Series 2004-TFL2' dated Nov. 9, 2004, available on the Fitch Ratings web site at www.fitchratings.com.