What is the CVSS score of CVE-2025-64405?

CVE-2025-64405 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.2%.

Which versions of Openoffice are affected by CVE-2025-64405?

CVE-2025-64405 presents notable security risk, a missing authorization vulnerability rated CVSS 7.5.

How to fix or mitigate CVE-2025-64405?

Within 30 days: Identify all affected systems running links. A missing Authorization vulnerability in Apache OpenO and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Openoffice CVE-2025-64405

HIGH

Missing Authorization (CWE-862)

2025-11-12 security@apache.org

Apache Authentication Bypass Openoffice

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:21 vuln.today

CVE Published

Nov 12, 2025 - 09:15 nvd

HIGH 7.5

DescriptionCVE.org

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, Calc spreadsheet containing DDE links 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.

AnalysisAI

Apache OpenOffice documents can contain links. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. 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, Calc spreadsheet containing DDE links to external files would load the contents of those files without prompting the user for permission to do so.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue. Affected products include: Apache Openoffice. Version information: through 4.1.15..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.