CVE record
CVE-2026-33999
A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.
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Vulnerability metadata
- Published
- 2026-04-23T10:46:24.623Z
- Modified
- 2026-05-19T22:46:51.453Z
- EPSS
- Not available
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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