CVE-2021-25635

medium

Description

An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to self sign an ODF document, with a signature untrusted by the target, then modify it to change the signature algorithm to an invalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a valid signature issued by a trusted person This issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.

References

https://www.libreoffice.org/about-us/security/advisories/cve-2021-25635/

Details

Source: Mitre, NVD

Published: 2025-03-21

Updated: 2025-03-21

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Severity: Medium