CVE-2026-6507

HIGH

7.5

Descricao

A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a dnsmasq server configured with the `--dhcp-split-relay` option. This can lead to memory corruption, causing the dnsmasq daemon to crash and resulting in a denial of service (DoS).

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/17/2026

Ultima modificacao4/17/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-787

Referencias

https://access.redhat.com/security/cve/CVE-2026-6507(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2459181(secalert@redhat.com)

Correlacoes IOC

Sem correlacoes registradas

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