SB2025112879 - Fedora 43 update for calibre
Published: November 28, 2025
Security Bulletin ID
SB2025112879
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2025-64486)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to the application does not validate filenames when handling binary assets in FB2 files. A remote attacker can trick the victim into converting a malicious FictionBook file and write files to arbitrary locations on the system, leading to system compromise.
Remediation
Install update from vendor's website.