Fiche vulnérabilité
CVE-2025-26601 : faille élevée tigervnc tigervnc (CVSS 7.8)
Description
A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.
En bref
- Sévérité
- Élevée (CVSS 7.8)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 25 févr. 2025
- Dernière mise à jour
- 29 juin 2026
Produits concernés
- tigervnc tigervnc
- x.org x server
- x.org xwayland
- redhat enterprise linux
Références
- Fiche CVE-2025-26601 sur le NVD (NIST)
- access.redhat.com/errata/RHSA-2025:2500
- access.redhat.com/errata/RHSA-2025:2502
- access.redhat.com/errata/RHSA-2025:2861
- access.redhat.com/errata/RHSA-2025:2862
- access.redhat.com/errata/RHSA-2025:2865
- access.redhat.com/errata/RHSA-2025:2866
- access.redhat.com/errata/RHSA-2025:2873
- access.redhat.com/errata/RHSA-2025:2874
- access.redhat.com/errata/RHSA-2025:2875
- access.redhat.com/errata/RHSA-2025:2879
- access.redhat.com/errata/RHSA-2025:2880
- access.redhat.com/errata/RHSA-2025:3976
- access.redhat.com/errata/RHSA-2025:7163
- access.redhat.com/errata/RHSA-2025:7165
- access.redhat.com/errata/RHSA-2025:7458