CVE-2025-64403

Apache OpenOffice: Remote documents loaded without prompt via "external data sources" in Calc

State: Published
Severity: 8.1 High
Published: Nov 12, 2025
Updated: Nov 12, 2025
Reserved: Nov 2, 2025

Description

Apache OpenOffice Calc spreadsheet can contain links to other files, in the form of "external data sources". A missing Authorization vulnerability in Apache OpenOffice allowed an attacker to craft a document that would cause such links to be loaded without prompt.

This issue affects Apache OpenOffice: through 4.1.15.

Users are recommended to upgrade to version 4.1.16, which fixes the issue.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N	CISA-ADP

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
Apache OpenOfficeApache Software Foundation	4.1.15 and earlierAffected

References

https://www.openoffice.org/security/cves/CVE-2025-64403.htmlvendor-advisory
https://lists.apache.org/thread/t7c6jhvdb00xtgd9vvn7h5sq9f4h5trtvendor-advisory
http://www.openwall.com/lists/oss-security/2025/11/11/6

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