CVE-2025-64406 Apache OpenOffice: Possible memory corruption during CSV import

Medium 4.3 Published 12 Nov 2025 Updated 12 Nov 2025

An attacker can craft a malicious CSV document to cause memory corruption, potentially leading to code execution or application crashes in Apache OpenOffice.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-64406?

CVE-2025-64406 is a medium-severity memory corruption vulnerability in Apache Openoffice, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An out-of-bounds Write vulnerability in Apache OpenOffice could allow an attacker to craft a document that would crash the program, or otherwise corrupt other memory areas.

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-787

Which versions are affected by CVE-2025-64406?

It affects 1 product.

Products include Apache Openoffice.

How do I fix CVE-2025-64406?

No fix has been published for CVE-2025-64406 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-64406 being exploited?

There is no known exploitation of CVE-2025-64406 in the wild and no public exploit code.

All Apache Openoffice vulnerabilities

Sources

Also known as GHSA-fj59-gg5v-953f.