CVE-2026-109092
X.Org Server XvShmPutImage Shared-Memory Bounds Overflow
Incorrectly handled negative sizes when processing ProcXvShmPutImage requests in the X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by local authenticated X clients to crash the X server or execute code.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: suseAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| xwayland X.Org xwayland
|
≥ 0; < 24.1.15 (affected, rpm)
Other versions: unaffected |
CNA: suse |
| xorg-x11-server X.Org xorg-x11-server
|
≥ 0; < 21.1.26 (affected, rpm)
Other versions: unaffected |
CNA: suse |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.8 high |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CNA: suse |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
For agents and automation
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