High severity · published Oct 11, 2021
CVE-2021-41830
It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.
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 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openoffice · Apache
before 4.1.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41830
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41830
Mailing List
https://lists.apache.org/thread.html/r97d287c88881aa581f1b18cb01e2cbedc4e6eae85958491acb89b12e%40%3Cusers.openoffice.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/raaab8a3b91f8d7b7ba14f873b8d0fd13952c823acc3385b7a374e754%40%3Cannounce.apache.org%3E
More from Openoffice
8.8
CVE-2023-47804
Apache OpenOffice documents can contain links that call internal macros with arbitrary arguments
8.8
CVE-2022-37401
Apache OpenOffice supports the storage of passwords for web connections in the user's configuration database
8.8
CVE-2022-37400
Apache OpenOffice supports the storage of passwords for web connections in the user's configuration database
8.8
CVE-2021-30245
The project received a report that all versions of Apache OpenOffice through 4.1.8 can open non-http(s) hyperlinks
8.1
CVE-2025-64403
Apache OpenOffice Calc spreadsheet can contain links to other files, in the form of "external data sources"
