CVE-2026-26740

HIGH

8.2

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.18.2

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/18/2026

Ultima modificacao3/21/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

giflib_project:giflib

Fraquezas (CWE)

CWE-787

Referencias

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

Correlacoes IOC

Sem correlacoes registradas

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