Double Free in Artifex Mupdf
CVE-2026-25556
MuPDF versions 1.23.0 through 1.27.0 contain a double-free vulnerability in fz_fill_pixmap_from_display_list() when an exception occurs during display list rendering. The function accepts a caller-owned fz_pixmap pointer but incorrectly dr…
Vulnerability class: Double Free
EPSS: 0.005 (38.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Artifex Mupdf
- Artifex Software Mupdf — versions 1.23.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking, Exploit, Issue Tracking)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-25556?
- CVE-2026-25556 is a high-severity vulnerability in Artifex Mupdf, classified under Double Free. CVSS score: 7.5/10. Published 2026-02-06.
- How severe is CVE-2026-25556?
- High severity. CVSS v3 base score is 7.5 out of 10.