CVEvulnerability

CVE-2026-50262

5.5 MEDIUM Published 2026-06-05 Modified 2026-08-05 Official page ↗
Status
Modified
Published
2026-06-05
Last modified
2026-08-05
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-125

Description

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.

Affected configurations

• x.org x server (< 21.1.23) • x.org xwayland (< 24.1.12) • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • redhat enterprise linux 9.0 • redhat enterprise linux 10.0

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References