Integer Underflow Affecting xorg-x11-server-Xwayland-debuginfo package, versions <0:24.1.5-6.el10_1


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-ROCKY10-XORGX11SERVERXWAYLANDDEBUGINFO-16379961
  • published4 May 2026
  • disclosed23 Apr 2026

Introduced: 23 Apr 2026

CVE-2026-33999  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:10 xorg-x11-server-Xwayland-debuginfo to version 0:24.1.5-6.el10_1 or higher.
This issue was patched in RLSA-2026:11352.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-Xwayland-debuginfo package and not the xorg-x11-server-Xwayland-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:10 relevant fixed versions and status.

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.

CVSS Base Scores

version 3.1