7.8
HighCVSS 3.1 · from suse
CVE-2026-93523
X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
xorg-x11-server · Heap buffer overflow · CWE-122Affectedxorg-x11-server, xwayland
FixUpdate to 21.1.25, 24.1.14 or newer
PublishedOct 28, 16:16 · suse
ScoredOct 28 · 7.8 · suse
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:06 UTC
What we know
No known exploitation. CISA KEV, checked 22:06 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs local access to the machine. CVSS: local.
A successful attack can read and change data and take the service down. CVSS: high impact on confidentiality, integrity and availability.
Description
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
From suse
Affected and fixed versions
ProductAffectedFixed inxorg-x11-serverbefore 21.1.2521.1.25xwaylandbefore 24.1.1424.1.14
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known