CVE-2025-64403

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

Published: Nov 12, 2025Updated: Nov 13, 2025 Sources: CVE List NVD BDUCWE-862

8.1HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-862

Affected Products

Apache Software Foundation

oss-project·USaka apache foundation

Apache OpenOfficeOn-premDesktop App

Consumer Software / productivity

OpenOfficeOn-premDesktop App

Consumer Software / productivity

apache

oss-project·USaka apache httpd, apache http server

openofficeOn-premWeb App

Web & CMS Plugins / cms-core

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://lists.apache.org/thread/t7c6jhvdb00xtgd9vvn7h5sq9f4h5trt

lists.apache.org

https://www.openoffice.org/security/cves/CVE-2025-64403.html

openoffice.org

http://www.openwall.com/lists/oss-security/2025/11/11/6

openwall.com

and 1 more references View all →

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