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    CVE-2020-26519

    Artifex MuPDF before 1.18.0 has a heap based buffer over-write when parsing JBIG2 files allowing attackers to cause a denial of service.

    Published:Oct 2, 2020
    Last Modified:Nov 21, 2024
    EPS:Oct 2, 2020
    EPSS Score:0.00769
    CVSS Score:5.5

    Affected Products

    Vendor
    Artifex
    Product
    Mupdf
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-71382 (CVSS 7.1) — MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that…
    CVE-2026-7233 (CVSS 1.9) — A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_c…
    CVE-2026-40505 (CVSS 4.8) — MuPDF before 1.27 contains an ANSI injection vulnerability in mutool that allows attackers to inject arbitrary…
    CVE-2026-3308 (CVSS 7.8) — An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to mal…
    CVE-2025-15569 (CVSS 7.3) — A flaw has been found in Artifex MuPDF up to 1.26.1 on Windows. The impacted element is the function get_syste…
    CVE-2026-25556 (CVSS 5.9) — MuPDF versions 1.23.0 through 1.27.0 contain a double-free vulnerability in fz_fill_pixmap_from_display_list()…
    CVE-2025-55780 (CVSS 7.5) — A null pointer dereference occurs in the function break_word_for_overflow_wrap() in MuPDF 1.26.4 when renderin…
    CVE-2025-46206 (CVSS 6.5) — An issue in Artifex mupdf 1.25.6, 1.25.5 allows a remote attacker to cause a denial of service via an infinite…
    CVE-2024-46657 (CVSS 5.5) — Artifex Software mupdf v1.24.9 was discovered to contain a segmentation fault via the component /tools/pdfextr…
    CVE-2024-24259 (CVSS 7.5) — freeglut through 3.4.0 was discovered to contain a memory leak via the menuEntry variable in the glutAddMenuEn…

    References

    http://git.ghostscript.com/?p=mupdf.git%3Ba=commit%3Bh=af1e390a2c7abceb32676ec684cd1dbb92907ce8
    https://bugs.ghostscript.com/show_bug.cgi?id=702937
    https://lists.debian.org/debian-lts-announce/2021/03/msg00012.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SOF4PX2A5TGKKPMXINADSOJJ4H5UUMKK/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJMBKWVY7ZBIQV3EU5YHEFH5XWV4PABG/
    https://security.gentoo.org/glsa/202105-30
    https://www.debian.org/security/2020/dsa-4794
    http://git.ghostscript.com/?p=mupdf.git%3Ba=commit%3Bh=af1e390a2c7abceb32676ec684cd1dbb92907ce8
    https://bugs.ghostscript.com/show_bug.cgi?id=702937
    https://lists.debian.org/debian-lts-announce/2021/03/msg00012.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SOF4PX2A5TGKKPMXINADSOJJ4H5UUMKK/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJMBKWVY7ZBIQV3EU5YHEFH5XWV4PABG/
    https://security.gentoo.org/glsa/202105-30
    https://www.debian.org/security/2020/dsa-4794

    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