VULNERABILITY INTELLIGENCE

CVE-2011-3348

CVSS score4.3 MEDIUM

EPSS probability22.38%

CISA KEVNot currently listed

Published2011-09-20

Last modified2026-06-16

Description

The mod_proxy_ajp module in the Apache HTTP Server before 2.2.21, when used with mod_proxy_balancer in certain configurations, allows remote attackers to cause a denial of service (temporary "error state" in the backend server) via a malformed HTTP request.