Auth bypass in Apache Openoffice
CVE-2025-64405
Apache OpenOffice documents can contain links. A missing Authorization vulnerability in Apache OpenOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. In the affected versions of Apache OpenOffice, Calc spreadsheet containing DDE links to external files would load the contents of those files without prompting the user for permission to do so. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue.
Vulnerability class: Broken Access Control
EPSS: 0.014 (69.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory, Vendor Advisory)
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-64405?
- CVE-2025-64405 is a high-severity vulnerability in Apache Openoffice, classified under Missing Authorization. CVSS score: 7.5/10. Published 2025-11-12.
- How severe is CVE-2025-64405?
- High severity. CVSS v3 base score is 7.5 out of 10.