5.5

CVE-2025-2866: libreoffice

CVSS: 5.5v3.1MediumModified
AliasesMGASA-2025-0154UBUNTU-CVE-2025-2866USN-7504-1
Published 27-04-2025Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2025-2866 is a medium (CVSS 5.5) vulnerability in libreoffice. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DLA-4205-1

Timeline

  1. 27-04-2025
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

+0.01 pp

From 0.11% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libreoffice< 4:25.2.2-1 | < 4:7.4.7-1+deb12u8
Libreoffice1 product
  • libreofficeEOL≥ 24.8.0.1, < 24.8.6.0 | ≥ 25.2.0.1, < 25.2.2 | 24.8.0.0:alpha1 | 24.8.0.0:beta1 | 25.2.0.0:alpha1 | 25.2.0.0:beta1
Mageia1 product
  • libreoffice< 24.2.7.2-1.3.mga9
The document foundation1 product
Ubuntu1 product
  • libreoffice< 1:6.4.7-0ubuntu0.20.04.15 | < 1:7.3.7-0ubuntu0.22.04.10 | < 4:24.2.7-0ubuntu0.24.04.4

5 vendors · 5 products

References

10 links