VULNERABILITY INTELLIGENCE

CVE-2012-4557

CVSS score5 MEDIUM

EPSS probability17.47%

CISA KEVNot currently listed

Published2012-11-30

Last modified2026-06-16

Description

The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 through 2.2.21 places a worker node into an error state upon detection of a long request-processing time, which allows remote attackers to cause a denial of service (worker consumption) via an expensive request.