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CVE-2026-26740

Published: 3/18/2026 Last updated: 7/23/2026 Reserved: 2/16/2026

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.

CNA assigner: mitre (8254265b-2729-46b6-b9e3-3dfca2d5bfca) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8.2 High CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Opam packages affected (1)

conf-libgif

Products affected (2)

Product Vendor Version
n/a n/a 12.1.3
n/a n/a n/a

References (42)