CVE-2026-4891

MEDIUM

5.3

Descripcion

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado5/11/2026

Ultima modificacion5/11/2026

Fuentenvd

Avistamientos honeypot0

Referencias

https://github.com/NixOS/nixpkgs/pull/519082(cret@cert.org)

https://github.com/NixOS/nixpkgs/pull/519093(cret@cert.org)

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html(cret@cert.org)

https://thekelleys.org.uk/dnsmasq/CVE/(cret@cert.org)

https://www.kb.cert.org/vuls/id/471747(cret@cert.org)

Correlaciones IOC

Sin correlaciones registradas

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