CVE-2025-2866

PDF signature forgery with adbe.pkcs7.sha1 SubFilter

State: Published
Severity: 2.4 Low
Published: Apr 27, 2025
Updated: Nov 3, 2025
Reserved: Mar 27, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	2.4 Low	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N	Document Fdn.

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
LibreOfficeThe Document Foundation	24.8 to before < 24.8.6Affected 25.2 to before < 25.2.2Affected

References

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