CVE-2025-64405: Apache OpenOffice: Remote documents loaded without prompt via DDE function

[Arrigo Marchiori <ardovm () apache org>]

Severity: moderate 

Affected versions:

- Apache OpenOffice through 4.1.15

Description:

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.

Credit:

Louis Bettels, Technische Universität Braunschweig (finder)

References:

https://www.openoffice.org/security/cves/CVE-2025-64405.html
https://openoffice.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-64405