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...

OESA-2026-2441 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

OESA-2026-2442 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

OESA-2026-2440 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

OESA-2026-2439 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: A malicious server can trigger a client-side global buffer overflow, causing a crash denial of...

RockyLinux 10 : openssh (RLSA-2025:20126)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:20126 advisory. openssh: OpenSSH SSHD Agent Forwarding and X11 Forwarding CVE-2025-32728 Tenable has extracted the preceding description block directly from the RockyLinux...

openssh security update

An update is available for openssh. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list OpenSSH is an SSH protocol implementation supported by a number of Linux,...

RLSA-2025:20126 Moderate: openssh security update

OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fixes: openssh: OpenSSH SSHD Agent Forwarding and X11 Forwarding CVE-2025-32728 For more details abo...

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

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Astra Linux – Vulnerability in libsdl1.2

It was discovered that SDL v1.2 contains a use-after-free issue due to the XFree function in the file /src/video/x11/SDLx11yuv.c...

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...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in the X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can lead to a heap buffer overflow condition, which may result in an application...

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...