CVE-2026-34001
Public on 2026-04-14
Modified on 2026-04-15
Description
XSYNC Use-after-free in miSyncTriggerFence()
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | tigervnc | 2026-04-30 | ALAS2-2026-3273 | Fixed |
| Amazon Linux 2023 | tigervnc | 2026-04-30 | ALAS2023-2026-1626 | Fixed |
| Amazon Linux 2 - Core | xorg-x11-server | 2026-04-30 | ALAS2-2026-3268 | Fixed |
| Amazon Linux 2023 | xorg-x11-server | 2026-04-30 | ALAS2023-2026-1614 | Fixed |
| Amazon Linux 2023 | xorg-x11-server-Xwayland | 2026-04-30 | ALAS2023-2026-1613 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |