Medium severity · published Nov 12, 2025
CVE-2025-64407
Apache OpenOffice: URL fetching can be used to exfiltrate arbitrary INI file values and environment variables
5.3
CVSS
0.5%
EPSS
No
On KEV
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. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AO
Apache OpenOffice · Apache Software Foundation
through 4.1.15 · source: vendor
OP
Openoffice · Apache
before 4.1.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64407
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64407
Mailing List
https://lists.apache.org/thread/4yg1gv71f14fw4ky4ds50o6xjq49594g
Vendor Advisory
https://www.openoffice.org/security/cves/CVE-2025-64407.html
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