AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2026-25636

HIGH · CVSS 8.2 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-02-06 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.2. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-25636
Severity
HIGH
CVSS
8.2
EPSS
0.21%

Original NVD Description

calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.

Related CVEs

Other vulnerabilities affecting the same vendor(s)