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libx11 vulnerabilities

Vulnerabilities published for libx11 in the last 30 days: 3. Listed in the KEV catalogue: 0.

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Vulnerabilities: 4

  1. CVE-2026-94285

    Medium · CVSS 5.1EPSS 0.15%Fix available

    Out-of-bounds read in libX11's byte-oriented codeset parser

    An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

    libx11Operating systems
    • Update to 2:1.8.13-1ubuntu0.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

  2. CVE-2026-94284

    Medium · CVSS 5.5EPSS 0.13%Fix available

    Out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser

    An out-of-bounds read vulnerability in libX11's XIM trigger-key registration parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

    libx11Operating systems
    • Update to 2:1.8.13-1ubuntu0.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

  3. CVE-2026-94283

    Medium · CVSS 6.5EPSS 0.21%Fix available

    Out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser

    An out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

    libx11Operating systems
    • Update to 2:1.8.13-1ubuntu0.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

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