CVE-2020-26519
CVE-2020-26519 is a medium-severity vulnerability in Artifex Mupdf with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Artifex Mupdf
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-26519?
- CVE-2020-26519 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-26519 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-26519?
- CVE-2020-26519 primarily affects Artifex Mupdf. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-26519?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-26519 published?
- CVE-2020-26519 was published on 2020-10-02 and last updated on 2026-06-17.
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
Affected products (5)
- cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
More vulnerabilities in Artifex Mupdf
- CVE-2019-7321 — Critical (CVSS 9.8): Usage of an uninitialized variable in the function fz_load_jpeg in Artifex MuPDF 1.14 can result in a heap overflow…
- CVE-2016-6525 — Critical (CVSS 9.8): Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to…
- CVE-2011-0341 — Critical (CVSS 9.3): Stack-based buffer overflow in the pdfmoz_onmouse function in apps/mozilla/moz_main.c in the MuPDF plug-in 2008.09.02…
- CVE-2020-16600 — High (CVSS 7.8): A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page…
- CVE-2012-5340 — High (CVSS 7.8): SumatraPDF 2.1.1/MuPDF 1.0 allows remote attackers to cause an Integer Overflow in the lex_number() function via a…
- CVE-2019-13290 — High (CVSS 7.8): Artifex MuPDF 1.15.0 has a heap-based buffer overflow in fz_append_display_node located at fitz/list-device.c, allowing…
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