CVE-2026-26740

HIGH

8.2

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.

Details CVE

Score CVSS v3.18.2

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/18/2026

Derniere modification3/21/2026

Sourcenvd

Observations honeypot0

Produits affectes

giflib_project:giflib

Faiblesses (CWE)

CWE-787

References

https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md(cve@mitre.org)

Correlations IOC

Aucune correlation enregistree

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