CVE-2025-2866 – LibreOffice PDF Signature Spoofing

The following table lists the changes that have been made to the
CVE-2025-2866 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]

    Apr. 27, 2025

    Action Type Old Value New Value
    Added Description Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation.

    In the affected versions of LibreOffice a flaw in the verification code for adbe.pkcs7.sha1 signatures could cause invalid signatures to be accepted as valid

    This issue affects LibreOffice: from 24.8 before < 24.8.6, from 25.2 before < 25.2.2.

    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/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-347
    Added Reference https://www.libreoffice.org/about-us/security/advisories/cve-2025-2866
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