Detections
Analytics
RockyLinux 8 : xorg-x11-server (RLSA-2026:11692)
high Nessus Plugin ID 311282
Synopsis
The remote RockyLinux host is missing one or more security updates.Description
The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:11692 advisory.* xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling (CVE-2026-33999)
* xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption (CVE-2026-34001)
* xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access (CVE-2026-34003)
Tenable has extracted the preceding description block directly from the RockyLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://errata.rockylinux.org/RLSA-2026:11692
https://bugzilla.redhat.com/show_bug.cgi?id=2451106
Plugin Details
Severity: High
ID: 311282
File Name: rocky_linux_RLSA-2026-11692.nasl
Version: 1.1
Type: Local
Published: 4/30/2026
Updated: 4/30/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-34003
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:rocky:linux:xorg-x11-server-debuginfo, p-cpe:/a:rocky:linux:xorg-x11-server-xnest-debuginfo, p-cpe:/a:rocky:linux:xorg-x11-server-xdmx, p-cpe:/a:rocky:linux:xorg-x11-server-devel, p-cpe:/a:rocky:linux:xorg-x11-server-xvfb-debuginfo, p-cpe:/a:rocky:linux:xorg-x11-server-common, p-cpe:/a:rocky:linux:xorg-x11-server-source, p-cpe:/a:rocky:linux:xorg-x11-server-xdmx-debuginfo, p-cpe:/a:rocky:linux:xorg-x11-server-xorg, p-cpe:/a:rocky:linux:xorg-x11-server-xnest, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:xorg-x11-server-debugsource, p-cpe:/a:rocky:linux:xorg-x11-server-xorg-debuginfo, p-cpe:/a:rocky:linux:xorg-x11-server-xephyr, p-cpe:/a:rocky:linux:xorg-x11-server-xvfb, p-cpe:/a:rocky:linux:xorg-x11-server-xephyr-debuginfo
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 4/30/2026
Vulnerability Publication Date: 4/14/2026