CVEvulnerability

CVE-2025-26596

7.8 HIGH Published 2025-02-25 Modified 2026-06-29 Official page ↗
Status
Modified
Published
2025-02-25
Last modified
2026-06-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

Description

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.

Affected configurations

• tigervnc tigervnc • x.org x server (< 21.1.16) • x.org xwayland (< 24.1.6) • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • redhat enterprise linux 9.0

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References