CVE-2026-34001EPSS p7.6%
CVE-2026-34001CVE-2026-34001
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.
Scoring
| CVSS | 7.8 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.18% probability of exploitation · percentile 7.6% · 2026-06-18T12:00:27Z |
| Last modified | 2026-06-08 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.