CVE-2025-2866
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
ProductLibreoffice
PublishedApr 27, 2025
First seenApr 27, 2025
Weakness typeCWE-347CWE-347
How to fix
Update
- libreoffice libreoffice24.8.6.0, 25.2.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libreoffice libreoffice | 24.8.0.1 ≤ v < 24.8.6.0, 25.2.0.1 ≤ v < 25.2.2, 24.8.0.0, 25.2.0.0 | 24.8.6.0, 25.2.2 |
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