HIGHCVSS v3.1 7.8Vulnerability
CVE-2026-93520
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-28T15:40:15.054286+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.8
- Retrieved at
- 2026-10-28T15:41:17+00:00
- Score
- 7.8
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-93520
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-10-28T15:41:17+00:00
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published at
- 2026-10-28T15:17:10.667
- Last modified
- 2026-10-28T15:21:55.940
Related Entities (1)
HAS_WEAKNESS (1)
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