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Case File

CVE-2016-5766

HIGH · CVSS 8.8 EPSS 7.50% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-08-07 · 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

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

CVE
CVE-2016-5766
Severity
HIGH
CVSS
8.8
EPSS
7.50%

Original Filing — NVD Description

Integer overflow in the _gd2GetHeader function in gd_gd2.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via crafted chunk dimensions in an image.