Missing Authorization in OpenOffice - CVE-2025-64403
Published: November 12, 2025
Vulnerability identifier: #VU118357
CSH Severity: Medium
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-64403
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing attacks.
The vulnerability exists due to missing authorization checks in Calc spreadsheet when loading external content. A remote attacker can trick the victim into opening a specially crafted document with "external data sources" linked to external files and load the content of those frames without prompting the user.
Affected software
OpenOffice
How to mitigate CVE-2025-64403
Install updates from vendor's website.
OpenOffice - update to 4.1.16