CVE-2026-88812: high-severity vulnerability in x.org xwayland
X.Org Server XKB SetGeometry TextDoodad Double Free
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Related CVEs — x.org xwayland
In the same product, most dangerous first.
CVE-2026-93523HIGHX.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds WriteEPSS 0.2%CVE-2026-93522HIGHX.Org Server Glamor CopyArea Heap Buffer OverflowEPSS 0.2%CVE-2026-93521HIGHX.Org Server RandR ChangeProviderProperty Heap Buffer OverflowEPSS 0.2%CVE-2026-93520HIGHX.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds WriteEPSS 0.2%CVE-2026-93518HIGHX.Org Server XKB ResizeKeyType Numeric TruncationEPSS 0.2%CVE-2026-93515MEDIUM.Org Server Present Extension Use-After-FreeEPSS 0.2%