CVE-2026-26740

HighCVSS 8.2/10Last modified Jul 23, 2026

Description

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.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published: Mar 18, 2026
Last modified: Jul 23, 2026
NVD status: Modified

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