9.3
/ 10
CRITICAL
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Description
calibre is an e-book manager. In versions 8.13.0 and prior, calibre does not validate filenames when handling binary assets in FB2 files, allowing an attacker to write arbitrary files on the filesystem when viewing or converting a malicious FictionBook file. This can be leveraged to achieve arbitrary code execution. This issue is fixed in version 8.14.0.
AI Analysis
Arbitrary code execution vulnerability in calibre when opening FB2 files
Basic Information
ID
CVE-2025-64486
Source
GitHub_M
Published
Nov 7, 2025 at 23:25
Affected Product
Vendor
kovidgoyal
Product
calibre
Version
< 8.14.0
Affected Versions
kovidgoyal calibre < 8.14.0
CWE Classification
AI Assessment
AI Score
9.3 / 10
AI Severity
Critical
Vendor
kovidgoyal
Product
calibre
Version
< 8.14.0