CVE-2026-26740

giflib 5.2.2 is affected by a Buffer Overflow in the EGifGCBToExtension path, which overwrites an existing Graphic Control Extension block without validating the allocated size. This can lead to a denial of service. The available sources confirm the vulnerability exists in the giflib 5.2.2 releas...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

giflib -- Buffer Overflow vulnerability

https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflibgiftoolgcelenheapoobwritedisclosure.md reports: Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block...

PT-2026-26131

Name of the Vulnerable Software and Affected Versions giflib version 5.2.2 Description A buffer overflow issue exists in giflib version 5.2.2. This flaw is due to the EGifGCBToExtension function overwriting an existing Graphic Control Extension block without validating its allocated size. This ca...