A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| X.Org | xorg-x11-server | unaffected |
|
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| X.Org | xwayland | unaffected |
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Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 13 Nov 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A buffer overread caused by an integer-overflow in Proc/SProcXResQueryClientIds in X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by attackers on authenticated X clients to crash the server or leak out information. | |
| Title | X.Org Server XRes QueryClientIds Request Size Overflow | |
| First Time appeared |
X.org
X.org xorg-x11-server X.org xwayland |
|
| Weaknesses | CWE-126 | |
| CPEs | cpe:2.3:a:x.org:xorg-x11-server:*:*:*:*:*:*:*:* cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
X.org
X.org xorg-x11-server X.org xwayland |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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MITRE
Status: PUBLISHED
Assigner: suse
Published:
Updated: 2026-11-13T10:27:48.418Z
Reserved: 2026-10-13T09:50:30.690Z
Link: CVE-2026-109904
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses