Description
A flaw was found in xorg-x11-server. The server writes pointer barrier events into a fixed-size buffer without properly validating boundaries. An authenticated client can trigger this issue by configuring excessive pointer barriers and generating cursor motion events, causing a buffer overflow. This vulnerability may lead to arbitrary code execution or cause the server to crash, resulting in a Denial of Service (DoS).
Published: n/a
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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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. The server writes pointer barrier events into a fixed-size buffer without properly validating boundaries. An authenticated client can trigger this issue by configuring excessive pointer barriers and generating cursor motion events, causing a buffer overflow. This vulnerability may lead to arbitrary code execution or cause the server to crash, resulting in a Denial of Service (DoS).
Title xorg-x11-server: XFixes Pointer Barrier Event List Buffer Overflow
Weaknesses CWE-787
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Subscriptions

No data.

cve-icon MITRE

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cve-icon Vulnrichment

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cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-07T12:00:00Z

Links: CVE-2026-93519 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses