Memory leak in MuPDF - CVE-2020-26683
Published: October 17, 2025
Vulnerability identifier: #VU117352
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-26683
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Artifex Software, Inc.
Affected software:
MuPDF
MuPDF
Detailed vulnerability description
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak pdf_new_array() in /pdf/pdf-font-add.c. A remote attacker can force the application to leak memory and perform denial of service attack.
How to mitigate CVE-2020-26683
Install updates from vendor's website.