CVE-2025-6196 - CVE House
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Status published Medium CVE-2025-6196

Libgepub: integer overflow in libgepub's epub archive handling

Vulnerability Description

A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Red Hat would like to thank Mohammad Hussam Alzeyyat - mhzcyber for reporting this issue.

Affected Vendor

Affected Software

Red Hat Enterprise Linux 7
Vulnerable Versions:
0

Timeline

Official Publish: June 17th, 2025
Last Modified: November 6th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)