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CVE-2007-6043

The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes...

7.1 High

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.

Exploit likelihood

4.72%Unchanged since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.1

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.

Record
CVE-2007-6043
CVSS 2.0
7.1 HighAV:N/AC:M/Au:N/C:C/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2007-6043
Updated
2026-11-02
EUVDEUVD-2007-6013 No score

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.

Record
EUVD-2007-6013
Updated
2026-11-03
GitHub AdvisoriesGHSA-qwjc-5gc9-97xh No score

The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes...

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.

Record
GHSA-qwjc-5gc9-97xh
Weakness
CWE-200
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
aliases, references, titleGitHub Advisories
first indexedCVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-6043 is a high vulnerability (CVSS 7.1) in Microsoft Windows 2000, published November 20, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.72%, the 91st percentile. No source names a fixed version.

References

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