PT-2025-45522 · Calibre+1 · Calibre+1

Published 2025-11-07 · Updated 2025-11-11 · CVE-2025-64486

Positive Technologies (AI Summary)

CVSS v4.0

9.3

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions calibre versions 8.13.0 and prior

Description calibre is an e-book manager. Versions 8.13.0 and earlier do not validate filenames when handling binary assets within FB2 files. This allows an attacker to write arbitrary files to the filesystem when a malicious FictionBook file is viewed or converted, potentially leading to arbitrary code execution.

Recommendations Update to calibre version 8.14.0 or later.

Exploit

Fix

RCE

Weakness Enumeration

CWE-73

Related Identifiers

CVE-2025-64486

GHSA-HPWQ-C98H-XP8G

Affected Products

Debian

Calibre

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64486.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-64486 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-64486 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-64486 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-64486 · Security Note
• https://ubuntu.com/security/CVE-2025-64486 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-64486 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-64486 · Vendor Advisory
• https://github.com/kovidgoyal/calibre/security/advisories/GHSA-hpwq-c98h-xp8g · Note
• https://github.com/kovidgoyal/calibre/commit/6f94bce214bf7d43c829804db3741afa5e83c0c5 · Note
• https://t.me/pentestingnews/70767 · Telegram Post
• https://t.me/poxek/5663 · Telegram Post
• https://twitter.com/0dayPublishing/status/1986941662950551836 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1987018128421745064 · Twitter Post
• https://twitter.com/offseq/status/1986947004346322995 · Twitter Post