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High severity · published Nov 12, 2025
CVE-2025-64405
Apache OpenOffice: Remote documents loaded without prompt via DDE function
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AO
Apache OpenOffice · Apache Software Foundation
through 4.1.15 · source: vendor
OP
Openoffice · Apache
before 4.1.16 · source: NVD
Affected product
AO
Apache OpenOffice
Apache Software Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64405
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64405
Mailing List
https://lists.apache.org/thread/0jjftxkcc4l9kt7jjn630hfrh2ygfcbk
Vendor Advisory
https://www.openoffice.org/security/cves/CVE-2025-64405.html
Mailing List
http://www.openwall.com/lists/oss-security/2025/11/11/8
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