CVE-2025-64403Apache OpenOffice: Remote documents loaded without prompt via "external data sources" in Calc
Updated under an hour ago ()
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It affects Apache Software Foundation Apache OpenOffice and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apache
- NVD analysis
- Analyzed
- Record last updated
- Nov 12, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache OpenOffice apache_software_foundation:apache_openoffice (from the name) | through 4.1.15 | CNA record |
apache openoffice apache:openoffice | before 4.1.16 | NVD |
References
- https://www.openoffice.org/security/cves/CVE-2025-64403.htmlvendor-advisory
- https://lists.apache.org/thread/t7c6jhvdb00xtgd9vvn7h5sq9f4h5trtvendor-advisory, mailing-list
- http://www.openwall.com/lists/oss-security/2025/11/11/6mailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.