Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-2866

Severity CVSS v4.0:
LOW
Type:
Unavailable / Other
Publication date:
27/04/2025
Last modified:
03/11/2025

Description

Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation.<br /> <br /> <br /> <br /> <br /> 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<br /> <br /> <br /> <br /> <br /> This issue affects LibreOffice: from 24.8 before

Impact

Vector 4.0
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 CVSS v4.0 Severity and Metrics:

Base Score: 2.40 LOW
Vector: 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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): Low
User Interaction (UI): Passsive
Confidentiality (VC): Low
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): Low
Integrity (SI): None
Availability (SA): None

Base Score 4.0
2.40
Severity 4.0
LOW
Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* 24.8.0.1 (including) 24.8.6.0 (excluding)
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* 25.2.0.1 (including) 25.2.2 (excluding)
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:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools