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xwayland vulnerabilities · Page 2

Vulnerabilities published for xwayland in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 26

  1. CVE-2025-49179

    High · CVSS 7.3EPSS 0.34%Fix available

    Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension

    A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

    • Update to 2:24.1.6-1ubuntu1
    Published Updated
  2. CVE-2025-49178

    Medium · CVSS 5.5EPSS 0.25%Fix available

    Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore

    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 processing another client's request, potentially leading to a denial of service.

    • Update to 2:24.1.6-1ubuntu1
    Published Updated
  3. CVE-2025-49177

    Medium · CVSS 6.1EPSS 0.44%Fix available

    Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension's xfixessetclientdisconnectmode

    A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.

    • Update to 2:24.1.6-1ubuntu1
    Published Updated
  4. CVE-2025-49176

    High · CVSS 7.3EPSS 0.37%Fix available

    Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension

    A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.

    • Update to 2:24.1.6-1ubuntu1
    Published Updated
  5. CVE-2025-49175

    Medium · CVSS 6.1EPSS 0.34%Fix available

    Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: out-of-bounds read in x rendering extension animated cursors

    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 one is present, leading to an out-of-bounds read and potential crash.

    • Update to 2:24.1.6-1ubuntu1
    Published Updated
  6. CVE-2022-49737

    High · CVSS 7.7EPSS 0.34%No fix published

    CVE-2022-49737

    In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.

    Published Updated

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