CVE-2021-25636
libreoffice: Incorrect trust validation of signature with ambiguous KeyInfo children
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 22, 2022
Updated · November 22, 2025
Description
A improper certificate validation flaw was found in LibreOffice allowing an attacker to manipulate a digitally signed ODF document to appear that no alteration of the document occurred since the last signing and that the signature is valid.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-295 · Improper Certificate Validation