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Untriaged
Permalink CVE-2025-26595
7.8 HIGH
  • CVSS version: 3.1
  • Attack vector (AV): LOCAL
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): HIGH
  • Integrity impact (I): HIGH
  • Availability impact (A): HIGH
created 6 months ago
Xorg: xwayland: buffer overflow in xkbvmodmasktext()

A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.

References

Affected products

xserver
  • <21.1.16
  • <24.1.6
tigervnc
  • *
xorg-x11-server
  • *
xorg-x11-server-Xwayland
  • *

Matching in nixpkgs

pkgs.tigervnc

Fork of tightVNC, made in cooperation with VirtualGL

  • nixos-unstable -