Apache OpenOffice 4.1.15: Missing Auth - External URI Links Execute
CVE-2025-64407 Published on November 12, 2025
Apache OpenOffice: URL fetching can be used to exfiltrate arbitrary INI file values and environment variables
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. Such links could also be used to transmit system information, such as environment variables or configuration settings.
In the affected versions of Apache OpenOffice, documents that used a certain URI scheme linking to external files would
load the contents of such files without prompting the user for
permission to do so. Such URI scheme allows to include system configuration data, that is not supposed to be transmitted externally.
This issue affects Apache OpenOffice: through 4.1.15.
Users are recommended to upgrade to version 4.1.16, which fixes the issue.
The LibreOffice suite reported this issue as CVE-2024-12426.
Vulnerability Analysis
CVE-2025-64407 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Types
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2025-64407 has been classified to as an AuthZ vulnerability or weakness.
Insertion of Sensitive Information Into Sent Data
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Sensitive information could include data that is sensitive in and of itself (such as credentials or private messages), or otherwise useful in the further exploitation of the system (such as internal file system structure).
Products Associated with CVE-2025-64407
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Affected Versions
Apache Software Foundation Apache OpenOffice:- Before and including 4.1.15 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.