CVE-2026-24881

HIGH

8.1

Descricao

In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.

Detalhes CVE

Pontuacao CVSS v3.18.1

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/27/2026

Ultima modificacao2/12/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

gnupg:gnupggpg4win:gpg4win

Fraquezas (CWE)

CWE-121

Referencias

https://dev.gnupg.org/T8044(cve@mitre.org)

https://www.openwall.com/lists/oss-security/2026/01/27/8(cve@mitre.org)

Correlacoes IOC

Sem correlacoes registradas

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