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Case File

CVE-2011-0421

MEDIUM · CVSS 4.3 EPSS 13.51% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-03-20 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

External Security References
exploit-db.com ↗

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

CVE
CVE-2011-0421
Severity
MEDIUM
CVSS
4.3
EPSS
13.51%

Original NVD Description

The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation.