CVE-2018-14665

CVE-2018-14665 0x00 Introduction Indian security researcher Narendra Shinde discovered a high-risk vulnerability CVE-2018-14665 in the X.Org Server package that allows a regular account to escalate privileges to root. It affects major Linux distributions including OpenBSD, Debian, Ubuntu, CentOS,...

CVE-2026-93523

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

X.Org Server GestureBuildSprite Use-After-Free Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...

Astra Linux – vulnerability in xorg-server

A heap buffer overflow flaw was found in the DisableDevice function within the X.Org server. This issue may result in an application crash or, under certain conditions, remote code execution in SSH X11 forwarding environments...

X.Org Server Glamor CopyArea Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the glamoruploadboxes...

X.Org Server XKB XkbSetMap Request Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...

X.Org Server Present Extension Use-After-Free Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...

X.Org Server XKB XkbResizeKeyType Numeric Truncation Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of XkbSetM...

SUSE SLED15: xorg-x11-server / xorg-x11-server-Xvfb / xorg-x11-server-extra / etc (SUSE-SU-2026:4646-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4646-1 advisory. - CVE-2026-88812: XKB SetGeometry TextDoodad Double Free bsc1281213. - CVE-2026-93515: X.Org Server Present...

X.Org Server XInput Passive Grab Use-After-Free Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...

X.Org Server XInput ProcXIPassiveUngrabDevice Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of modifie...

X.Org Server RandR Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the...

X.Org Server GLX RenderLarge Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the glXDispRenderLarge...

X.Org Server XKB Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the XkbChangeKeycodeRan...

X.Org Server XKB TextDoodad Double Free Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of...

X.Org Server XFixes Pointer Barrier Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the inputconstraincurso...

CVE-2026-93536

A flaw was found in the X.Org Server. When a window is removed during an active gesture, the server fails to clean up references to the destroyed window in its gesture tracking data. A local attacker can exploit this flaw to cause a use-after-free condition—where the system accesses memory after ...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1763651916)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1763651916 advisory. - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly...

CentOS Linux 7 [TuxCare] Security Update: xorg-x11-server-Xdmx / xorg-x11-server-Xephyr / etc Multiple Vulnerabilities (CENTOS7:CLSA-2025:1765223770)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2025:1765223770 advisory. - A flaw was found in the X.org server. Due to improperly tracked allocation size in XkbSetCompatMap, a local attacker may be able to...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1778110872)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1778110872 advisory. - A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it...