CVE-2008-2108

CriticalCVSS 9.8/10Last modified Jun 16, 2026

Description

The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mt_rand functions.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-331

Affected software

No affected versions have been published.

Timeline

Published: May 7, 2008
Last modified: Jun 16, 2026
NVD status: Modified

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