VULNERABILITY INTELLIGENCE
CVE-2026-34003
CVSS score7.8 HIGH
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-04-23
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash, leading to a Denial of Service (DoS). In certain configurations, higher impact outcomes may be possible.
Weakness classification
- secalert@redhat.com: CWE-125
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-125