CVE-2017-14686
Artifex MuPDF 1.11 allows attackers to execute arbitrary code or cause a denial of service via a crafted .xps file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d" on Windows.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Artifex MuPDF 1.11 allows attackers to execute arbitrary code or cause a denial of service via a crafted .xps file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d" on Windows. This occurs because read_zip_dir_imp in fitz/unzip.c does not check whether size fields in a ZIP entry are negative numbers.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.86% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- artifex/mupdf
- Source
- cve@mitre.org
EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.ghostscript.com/?p=mupdf.git%3Bh=0f0fbc07d9be31f5e83ec5328d7311fdfd8328b1
- http://www.debian.org/security/2017/dsa-4006
- https://bugs.ghostscript.com/show_bug.cgi?id=698540Exploit, Third Party Advisory
- https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-14686Third Party Advisory
- http://git.ghostscript.com/?p=mupdf.git%3Bh=0f0fbc07d9be31f5e83ec5328d7311fdfd8328b1
- http://www.debian.org/security/2017/dsa-4006
- https://bugs.ghostscript.com/show_bug.cgi?id=698540Exploit, Third Party Advisory
- https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-14686Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.