Libsixel

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    Products: 1
    Vulnerabilities: 4
    Known Exploited: 0
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    Vulnerabilities

    CVE-2021-40656

    libsixel before 1.10 is vulnerable to Buffer Overflow in libsixel/src/quant.c:867.

    Last Modified: Apr 24, 2026
    Published: Apr 08, 2022

    CVE-2021-41715

    libsixel 1.10.0 is vulnerable to Use after free in libsixel/src/dither.c:379.

    Last Modified: Apr 23, 2026
    Published: Apr 08, 2022

    CVE-2022-27938

    stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.

    Last Modified: Apr 24, 2026
    Published: Mar 26, 2022

    CVE-2021-45340

    In Libsixel prior to and including v1.10.3, a NULL pointer dereference in the stb_image.h component of libsixel allows attackers to cause a denial of service (DOS) via a crafted PICT file.

    Last Modified: Apr 24, 2026
    Published: Jan 25, 2022
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    Libsixel Vulnerabilities & Security CVEs | CVE-DB