CVE-2026-33999

HIGH

7.8

Descripcion

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.

Detalles CVE

Puntuacion CVSS v3.17.8

SeveridadHIGH

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

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado4/23/2026

Ultima modificacion4/23/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-191

Referencias

https://access.redhat.com/security/cve/CVE-2026-33999(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2451106(secalert@redhat.com)

Correlaciones IOC

Sin correlaciones registradas

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