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. In the affected versions of Apache OpenOffice, documents that used "OLE objects" linked to external files would load the contents of those files without prompting the user for permission to do so. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue.
Conclusion & alert: CVE-2025-64402 is rated Low Risk (34.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-14 | 0.01% | 0.08% | +0.06% |
| 2 | 2025-11-12 | — | 0.01% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | openoffice | < 4.1.16 | cpe:2.3:a:apache:openoffice:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/tssrl88tygjsgk6csllm6p2fb6tlv8d8 | Mailing List Vendor Advisory |
| https://www.openoffice.org/security/cves/CVE-2025-64402.html | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/11/11/5 | Mailing List Third Party Advisory |