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Vulnerability record · CVE-2026-3308 · published 31 March 2026

CVE-2026-3308: Integer overflow vulnerability

An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the 'pdf_load_image_imp' function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.

7.8 CVSS 3.1 High EPSS 0.20% · top 91.6% CWE-190 · Integer overflow Awaiting Analysis
7.8CVSS 3.1 base score
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
25 Jul 2026Last modified by NVD

Description

An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the 'pdf_load_image_imp' function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

LinkTags
https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
https://github.com/ArtifexSoftware/mupdf
https://github.com/ArtifexSoftware/mupdf/commit/a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html
https://www.kb.cert.org/vuls/id/951662

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-3308), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.