RHSA-2026:20560 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

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RHSA-2026:20557 Red Hat Security Advisory: xorg-x11-server security update

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RHSA-2026:20555 Red Hat Security Advisory: xorg-x11-server security update

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RHSA-2026:20547 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

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Important: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Important: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Important: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

Important: Red Hat Security Advisory: xorg-x11-server-Xwayland security update

An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severi...

Updated x11-server, x11-server-xwayland & tigervnc packages fix security vulnerabilities

XKB Integer Underflow in XkbSetCompatMap. CVE-2026-33999 XKB Out-of-bounds Read in CheckSetGeom. CVE-2026-34000 XSYNC Use-after-free in miSyncTriggerFence. CVE-2026-34001 XKB Out-of-bounds read in CheckModifierMap. CVE-2026-34002 XKB Buffer overflow in CheckKeyTypes. CVE-2026-34003...

RHSA-2026:19344 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

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Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-x11-server in versions prior to 21.1.2 and prior to 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system availability...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

ALSA-2026:19125 Important: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: 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...

Alibaba Cloud Linux 3 : 0105: xorg-x11-server-Xwayland (ALINUX3-SA-2026:0105)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0105 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-33999: A flaw was found in the...

CLSA-2026-1778069531 xorg-x11-server-Xwayland: Fix of 3 CVEs

CVE fix for: CVE-2026-33999, CVE-2026-34001, CVE-2026-34003...

CVE-2026-34001 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4

CVE-2026-34001 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4. A patched version of the package is available...

CVE-2026-33999 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4

CVE-2026-33999 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4. A patched version of the package is available...

AZL-86211 CVE-2026-34000 affecting package xorg-x11-server 1.20.10-6

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the CheckSetGeom and XkbAddGeomKeyAlias functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server,...

AZL-86208 CVE-2026-34002 affecting package xorg-x11-server 1.20.10-6

A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB X Keyboard Extension modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory...