← Retour aux CVEs

CVE-2026-34001

HIGH

7.8

Description

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

Details CVE

Score CVSS v3.17.8

SeveriteHIGH

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

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie4/23/2026

Derniere modification4/29/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-825

References

https://access.redhat.com/errata/RHSA-2026:10739(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:11352(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:11369(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:11388(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:11656(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:11692(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2026-34001(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2451109(secalert@redhat.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.