Giflib Project CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

HIGH Giflib Project CVE published 2026-03-18

CVE-2026-26740

CVE-2026-26740 is a Buffer Overflow vulnerability in giflib v.5.2.2. The vulnerability allows a remote attacker to cause a denial of service via the EGifGCBToExtension function, which overwrites an existing Graphic Control Extension block without validating its allocated size. This issue was published on March 18, 2026, and modified on June 30, 2026. The CVSS score for this vulnerability is 8.2, indicatin [truncated]

CRITICAL Giflib Project CVE published 2017-01-23

CVE-2016-3177

CVE-2016-3177 describes multiple use-after-free and double-free flaws in GIFLIB 5.1.2's gifcolor.c. NVD rates the issue Critical, and the published metadata maps it to memory-corruption weaknesses CWE-415 and CWE-416.