RHEL 10 : xorg-x11-server-Xwayland (RHSA-2026:38489)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38489 advisory. Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer...

Important: xorg-x11-server security update

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 For more details about the...

AlmaLinux 8 : xorg-x11-server-Xwayland (ALSA-2026:38488)

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:38488 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the AlmaLinux...

openSUSE 16: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (openSUSE-SU-2026:21273-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21273-1 advisory. This update for xorg-x11-server fixes the following issues - CVE-2026-55999: missing bounds check in glamorfontget can lead to a heap buffer...

CVE-2026-56000 affecting package xorg-x11-server-Xwayland for versions less than 24.1.13-1

CVE-2026-56000 affecting package xorg-x11-server-Xwayland for versions less than 24.1.13-1. An upgraded version of the package is available that resolves this issue...

xorg-x11-server-21.1.21-8.1 on GA media (moderate)

xorg-x11-server-21.1.21-8.1 on GA media Announcement ID: openSUSE-SU-2026:11244-1 Rating: moderate Cross-References: CVE-2026-55999 CVE-2026-56000 CVSS scores: CVE-2026-55999 SUSE : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-55999 SUSE : 7.3...

Fedora 44 : xorg-x11-server (2026-28b7854014)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-28b7854014 advisory. Update to xserver 21.1.24, fixes for: CVE-2026-55999, CVE-2025-56000 Tenable has extracted the preceding description block directly from the Fedora...

Oracle Linux 7 : tigervnc (ELSA-2026-22456)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-22456 advisory. - Fix CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003 and CVE-2026-34352 Orabug: 39478221 - Fix CVE-2025-62229:...

EulerOS 2.0 SP12 : xorg-x11-server (EulerOS-SA-2026-2577)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the...

RHSA-2026:36792 Red Hat Security Advisory: xorg-x11-server security update

Bulletin has no description...

RHSA-2026:36791 Red Hat Security Advisory: xorg-x11-server security update

Bulletin has no description...

RHSA-2026:36768 Red Hat Security Advisory: xorg-x11-server security update

Bulletin has no description...

SUSE CVE-2026-55999

Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks...

Oracle Linux 7 : xorg-x11-server (ELSA-2026-20590)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-20590 advisory. - Security update for CVE-2026-33999 CVE-2026-34000 CVE-2026-34001 CVE-2026-34002 CVE-2026-34003 Orabug: 39440282 - Security update for CVE-2025-62229...

SUSE SLES15 Security Update : xorg-x11-server (SUSE-SU-2026:2789-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2789-1 advisory. This update for xorg-x11-server fixes the following issues - CVE-2026-55999: glamor Font Atlas Heap Buffer Overflow bsc1268893. -...

Alibaba Cloud Linux 3 : 0183: xorg-x11-server-Xwayland (ALINUX3-SA-2026:0183)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0183 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-50256: A stack-based buffer...

OPENSUSE-SU-2026:11244-1 xorg-x11-server-21.1.21-8.1 on GA media

These are all security issues fixed in the xorg-x11-server-21.1.21-8.1 package on the GA media of openSUSE Tumbleweed...

FreeBSD : xwayland -- Multiple vulnerabilities (7ac0f35a-7aeb-11f1-a315-589cfc10a551)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 7ac0f35a-7aeb-11f1-a315-589cfc10a551 advisory. X.Org project reports: Multiple issues have been found in the X server and Xwayland...

SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2026:2792-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:2792-1 advisory. This update for xorg-x11-server fixes the following issue - CVE-2026-55999: missing bounds check in glamorfontget can lead to a heap buffer overflow wh...

SUSE SLES15: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (SUSE-SU-2026:2791-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2791-1 advisory. This update for xorg-x11-server fixes the following issues - CVE-2026-55999: glamor Font Atlas Heap Buffer Overflow bsc1268893. -...