CVE-2021-25635 – LibreOffice Improper Certificate Validation Certificate Spoofing Vulnerability

The following table lists the changes that have been made to the
CVE-2021-25635 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Mar. 21, 2025

    Action Type Old Value New Value
    Added 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.

    Added CVSS V4.0 AV:L/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-295
    Added Reference https://www.libreoffice.org/about-us/security/advisories/cve-2021-25635/
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