Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-93011

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-787 Escritura fuera de límites
Fecha de publicación:
29/10/2026
Última modificación:
30/10/2026

Descripción

*** Pendiente de traducción *** A flaw was found in dnsmasq. After a reduction of internal domain-name buffer sizes, the DNSSEC validator can write a few bytes past a name buffer when converting names to and from DNS wire format. An attacker who can cause the server to validate a crafted DNSSEC response may overwrite a small amount of adjacent heap metadata. DNSSEC support is not compiled in by default and must also be enabled at runtime.