A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clients to crash the X server or potentially execute code in X server context.
Fix
Vendor advisories in the News 1
- ZDI-26-761: X.Org Server XInput Passive Grab Use-After-Free Information Disclosure Vulnerability Zero Day Initiative: published advisories · 2026-10-15
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 3
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 13:03
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 14:07
- First seenCVSS 5.5 · x.orgNVD modified 2026-10-28 13:03
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.