CVE-2025-64403

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.

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS

1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2025-11-12

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• apache:openoffice

References

• https://lists.apache.org/thread/t7c6jhvdb00xtgd9vvn7h5sq9f4h5trt
• https://www.openoffice.org/security/cves/CVE-2025-64403.html
• http://www.openwall.com/lists/oss-security/2025/11/11/6

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