SB2025112631 - NULL pointer dereference in MuPDF
Published: November 26, 2025
Security Bulletin ID
SB2025112631
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-55780)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in source/html/html-layout.c. A remote attacker can trick the victim into opening a specially crafted PDF file and crash the application.
Remediation
Install update from vendor's website.