AUGUST 4, 2026
Live Feed
Return to register
Case File

CVE-2012-2311

HIGH · CVSS 7.5 EPSS 69.56%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-05-11 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2012-2311
Severity
HIGH
CVSS
7.5
EPSS
69.56%

Original Filing — NVD Description

sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that contain a %3D sequence but no = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.