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    CVE-2025-9300

    A vulnerability was found in saitoha libsixel up to 1.10.3. Affected by this issue is the function sixel_debug_print_palette of the file src/encoder.c of the component img2sixel. The manipulation results in stack-based buffer overflow. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is identified as 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Applying a patch is advised to resolve this issue.

    Published:Aug 21, 2025
    Last Modified:Apr 24, 2026
    EPS:Aug 21, 2025
    EPSS Score:0.00039
    CVSS Score:5.3

    Affected Products

    Vendor
    Saitoha
    Product
    Libsixel

    Exploits

    https://drive.google.com/file/d/1IIvvRFgUQZcySqeoqXXhsxd0HZCjClJ7/view?usp=sharinghttps://github.com/saitoha/libsixel/issues/200https://github.com/saitoha/libsixel/issues/200#issuecomment-3178785635https://vuldb.com/?submit.632366https://github.com/saitoha/libsixel/issues/200https://github.com/saitoha/libsixel/issues/200#issuecomment-3178785635https://vuldb.com/?submit.632366

    Related CVEs

    CVE-2026-44637 (CVSS 7.1) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a signed int…
    CVE-2026-44636 (CVSS 7.4) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, signed integ…
    CVE-2026-44638 (CVSS 2.5) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL…
    CVE-2026-33023 (CVSS 7.8) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. In versions 1.8.7 and prior, wh…
    CVE-2026-33021 (CVSS 7.3) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contai…
    CVE-2026-33020 (CVSS 7.1) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contai…
    CVE-2026-33019 (CVSS 7.1) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contai…
    CVE-2026-33018 (CVSS 7) — libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contai…
    CVE-2025-61146 (CVSS 4) — saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.…
    CVE-2022-29978 (CVSS 6.5) — There is a floating point exception error in sixel_encoder_do_resize, encoder.c:633 in libsixel img2sixel 1.8.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High