CVE-2025-2866

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.libreoffice.org/about-us/security/advisories/cve-2025-2866	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:libreoffice:libreoffice::::::::
	cpe:2.3:a:libreoffice:libreoffice::::::::
	cpe:2.3:a:libreoffice:libreoffice:24.8.0.0:alpha1::::::
	cpe:2.3:a:libreoffice:libreoffice:24.8.0.0:beta1::::::
	cpe:2.3:a:libreoffice:libreoffice:25.2.0.0:alpha1::::::
	cpe:2.3:a:libreoffice:libreoffice:25.2.0.0:beta1::::::

History

03 Jul 2025, 21:26

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-04-27 19:15

Updated : 2025-07-03 21:26

NVD link : CVE-2025-2866

Mitre link : CVE-2025-2866

CVE.ORG link : CVE-2025-2866

JSON object : View

Products Affected

libreoffice

libreoffice

CWE

CWE-347

Improper Verification of Cryptographic Signature

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