VULNERABILITY INTELLIGENCE

CVE-2007-2727

CVSS score2.6 LOW
EPSS probability1.90%
CISA KEVNot currently listed
Published2007-05-16
Last modified2026-06-16
CVSS vectorAV:N/AC:H/Au:N/C:P/I:N/A:N

Description

The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.

Primary references