CVE-2025-64405 Apache OpenOffice: Remote documents loaded without prompt via DDE function
Attackers can craft documents that load external DDE links without user prompts, bypassing security controls and potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-64405?
CVE-2025-64405 is a high-severity missing authorization vulnerability in Apache Openoffice, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2025-64405?
It affects 1 product.
Products include Apache Openoffice.
How do I fix CVE-2025-64405?
No fix has been published for CVE-2025-64405 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-64405 being exploited?
There is no known exploitation of CVE-2025-64405 in the wild and no public exploit code.
Other vulnerabilities in Apache Openoffice
Sources
Also known as GHSA-h4jv-xw7f-wjrg.