xorg-x11-server-source (AlmaLinux:9) — known CVEs & security advisories

Known CVE vulnerabilities and GitHub Security Advisories affecting the AlmaLinux:9 package xorg-x11-server-source, with affected version ranges, CVSS severity, EPSS exploit prediction, and CISA KEV status.

CVEs (45)

• CVE-2023-6816 — CVSS 9.8 (critical): A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down…
• CVE-2022-46341 — CVSS 8.8 (high): A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab request accesses out-of-bounds…
• CVE-2022-46342 — CVSS 8.8 (high): A vulnerability was found in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory…
• CVE-2022-46343 — CVSS 8.8 (high): A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes request may write to…
• CVE-2022-46344 — CVSS 8.8 (high): A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation…
• CVE-2022-46340 — CVSS 8.8 (high): A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest…
• CVE-2023-0494 — CVSS 7.8 (high): A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by…
• CVE-2022-2320 — CVSS 7.8 (high): A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results…
• CVE-2022-4283 — CVSS 7.8 (high): A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory…
• CVE-2024-31083 — CVSS 7.8 (high): A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is…
• CVE-2024-9632 — CVSS 7.8 (high): A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to…
• CVE-2025-26594 — CVSS 7.8 (high): A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client…
• CVE-2025-26595 — CVSS 7.8 (high): A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and…
• CVE-2025-26596 — CVSS 7.8 (high): A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in…
• CVE-2025-26597 — CVSS 7.8 (high): A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols…
• CVE-2025-26598 — CVSS 7.8 (high): An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its…
• CVE-2025-26599 — CVSS 7.8 (high): An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate…
• CVE-2025-26600 — CVSS 7.8 (high): A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device…
• CVE-2025-26601 — CVSS 7.8 (high): A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the…
• CVE-2025-49180 — CVSS 7.8 (high): A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to…
• CVE-2026-33999 — CVSS 7.8 (high): A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an…
• CVE-2026-34001 — CVSS 7.8 (high): A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within…
• CVE-2026-34003 — CVSS 7.8 (high): A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X…
• CVE-2022-2319 — CVSS 7.8 (high): A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due to improper…
• CVE-2023-1393 — CVSS 7.8 (high): A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys…
• CVE-2023-5367 — CVSS 7.8 (high): A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when…
• CVE-2023-6377 — CVSS 7.8 (high): A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in…
• CVE-2024-0229 — CVSS 7.8 (high): An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is…
• CVE-2024-0409 — CVSS 7.8 (high): A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the…
• CVE-2024-21885 — CVSS 7.8 (high): A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when…
• CVE-2024-21886 — CVSS 7.8 (high): A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in…
• CVE-2023-6478 — CVSS 7.6 (high): A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer…
• CVE-2025-49176 — CVSS 7.3 (high): A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size…
• CVE-2025-62231 — CVSS 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…
• CVE-2025-62229 — CVSS 7.3 (high): A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during…
• CVE-2024-31080 — CVSS 7.3 (high): A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when…
• CVE-2025-62230 — CVSS 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…
• CVE-2025-49179 — CVSS 7.3 (high): A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when…
• CVE-2024-31081 — CVSS 7.3 (high): A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when…
• CVE-2025-49175 — CVSS 6.1 (medium): A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least…
• CVE-2022-3550 — CVSS 5.5 (medium): A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the function _GetCountedString of the…
• CVE-2024-0408 — CVSS 5.5 (medium): 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 unlabeled. When…
• CVE-2025-49178 — CVSS 5.5 (medium): A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip…
• CVE-2023-5380 — CVSS 4.7 (medium): A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a…
• CVE-2022-3551 — CVSS 3.5 (low): A vulnerability, which was classified as problematic, has been found in X.org Server. Affected by this issue is the function…