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Case File

CVE-2011-4858

MEDIUM · CVSS 5 EPSS 80.32% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-01-05 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2011-4858
Severity
MEDIUM
CVSS
5
EPSS
80.32%
Apache

Original Filing — NVD Description

Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.