CVE-2025-64486 | THREATINT

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.

PUBLISHED Reserved 2025-11-05 | Published 2025-11-07 | Updated 2025-11-07 | Assigner GitHub_M

CRITICAL: 9.3CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-73: External Control of File Name or Path

Product status

< 8.14.0

affected

References

github.com/...alibre/security/advisories/GHSA-hpwq-c98h-xp8g

github.com/...ommit/6f94bce214bf7d43c829804db3741afa5e83c0c5

cve.org (CVE-2025-64486)

nvd.nist.gov (CVE-2025-64486)

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