CVE-2007-6043

critical

Description

The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898.

References

http://www.securityfocus.com/bid/26495

http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1

http://eprint.iacr.org/2007/419.pdf

Details

Source: Mitre, NVD

Published: 2007-11-20

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.04725