Search Results (203 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2023-43787 3 Fedoraproject, Redhat, X.org 4 Fedora, Enterprise Linux, Rhel Els and 1 more 2026-11-07 7.8 High
A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.
CVE-2023-43785 3 Fedoraproject, Redhat, X.org 4 Fedora, Enterprise Linux, Rhel Els and 1 more 2026-11-07 6.5 Medium
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
CVE-2023-43786 3 Fedoraproject, Redhat, X.org 4 Fedora, Enterprise Linux, Rhel Els and 1 more 2026-11-07 5.5 Medium
A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.
CVE-2026-93523 1 X.org 3 X Server, Xorg-x11-server, Xwayland 2026-11-07 7.8 High
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.
CVE-2026-93520 1 X.org 3 Xorg-server, Xorg-x11-server, Xwayland 2026-11-07 7.8 High
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
CVE-2023-43788 3 Fedoraproject, Redhat, X.org 4 Fedora, Enterprise Linux, Rhel Els and 1 more 2026-11-07 5.5 Medium
A vulnerability was found in libXpm due to a boundary condition within the XpmCreateXpmImageFromBuffer() function. This flaw allows a local attacker to trigger an out-of-bounds read error and read the contents of memory on the system.
CVE-2026-93536 1 X.org 3 X Server, Xorg-x11-server, Xwayland 2026-11-06 5.3 Medium
A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code.
CVE-2026-93524 1 X.org 3 X Server, Xorg-x11-server, Xwayland 2026-11-06 3.3 Low
A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.
CVE-2026-93516 1 X.org 3 X Server, Xorg-x11-server, Xwayland 2026-11-06 5.5 Medium
A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clients to crash the X server or potentially execute code in X server context.
CVE-2026-93515 1 X.org 3 X Server, Xorg-x11-server, Xwayland 2026-11-06 6.1 Medium
A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.
CVE-2026-50263 2 Redhat, X.org 10 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 7 more 2026-11-05 5.5 Medium
A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
CVE-2026-50262 2 Redhat, X.org 11 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 8 more 2026-11-05 5.5 Medium
An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.
CVE-2026-34002 2 Redhat, X.org 9 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 6 more 2026-11-05 6.1 Medium
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 boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service.
CVE-2026-34000 2 Redhat, X.org 10 Enterprise Linux, Enterprise Linux Eus, Rhel Aus and 7 more 2026-11-05 6.1 Medium
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, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.
CVE-2026-93522 1 X.org 2 Xorg-x11-server, Xwayland 2026-11-05 7.8 High
A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path 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 the X server context.
CVE-2026-93519 2 X.org, X.orgg 2 Xorg-x11-server, Xwayland 2026-11-05 7.8 High
A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
CVE-2026-93518 1 X.org 3 Xorg-server, Xorg-x11-server, Xwayland 2026-11-05 7.8 High
An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.
CVE-2026-93517 2 X.org, X.orgg 3 X Server, Xwayland, Xorg-x11-server 2026-11-05 7.8 High
A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server context.
CVE-2025-62231 4 Debian, Ibm, Redhat and 1 more 17 Debian Linux, Aix, Vios and 14 more 2026-11-05 7.3 High
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
CVE-2025-62230 4 Debian, Ibm, Redhat and 1 more 17 Debian Linux, Aix, Vios and 14 more 2026-11-05 7.3 High
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.