GLSA-202608-14 : X.Org X server, XWayland: Multiple Vulnerabilities

critical Nessus Plugin ID 337634

Description

The remote host is affected by the vulnerability described in GLSA-202608-14 (X.Org X server, XWayland: Multiple Vulnerabilities)

Multiple vulnerabilities have been discovered in X.Org X server, XWayland. Please review the CVE identifiers referenced below for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux 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

All X.Org X server, XWayland users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=x11-base/xorg-server-21.1.24 All X.Org X server, XWayland users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=x11-base/xwayland-24.1.13

Plugin Details

Severity: Critical

ID: 337634

File Name: gentoo_GLSA-202608-14.nasl

Version: 1.1

Type: Local

Family: Gentoo Local Security Checks

Published: 8/18/2026

Updated: 8/18/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.46

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

CVSS Score Source: CVE-2026-34002

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9

Threat Score: 6.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2026-56000

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:xorg-server, p-cpe:/a:gentoo:linux:xwayland

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 6/17/2025

Reference Information

CVE: CVE-2025-49175, CVE-2025-49176, CVE-2025-49177, CVE-2025-49178, CVE-2025-49179, CVE-2025-49180, CVE-2025-62229, CVE-2025-62230, CVE-2025-62231, CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003, CVE-2026-50256, CVE-2026-50257, CVE-2026-50258, CVE-2026-50259, CVE-2026-50260, CVE-2026-50261, CVE-2026-50262, CVE-2026-50263, CVE-2026-55999, CVE-2026-56000

Detections

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