A flaw was found in xorg-x11-server. An authenticated local user can trigger an out-of-bounds heap memory read by sending specially crafted X Keyboard Extension (XKB) requests with inconsistent key range parameters. This flaw leads to information disclosure, allowing the user to read sensitive data from the server's heap memory.
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History
Thu, 08 Oct 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in xorg-x11-server. An authenticated local user can trigger an out-of-bounds heap memory read by sending specially crafted X Keyboard Extension (XKB) requests with inconsistent key range parameters. This flaw leads to information disclosure, allowing the user to read sensitive data from the server's heap memory. | |
| Title | xorg-x11-server: XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read | |
| Weaknesses | CWE-125 | |
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threat_severity
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cvssV3_1
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MITRE
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Redhat
OpenCVE Enrichment
Updated: 2026-10-08T14:30:18Z
Weaknesses