---
cve: "CVE-2025-2866"
severity: "LOW"
cvss: 2.4
epss: "0.1%"
vendor: "The Document Foundation"
kev: false
exploited: false
published: "2025-04-27 19:15:15"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T18:17:40+01:00"
---

# CVE-2025-2866

> 2.4 LOW

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **Document Fdn.**
- State: PUBLISHED
- Stand: 2025-11-03 19:46:42
- CNA-CVSS: **2.4** (`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`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |

## Schwachstellen-Klasse

- **CWE-347** — Improper Verification of Cryptographic Signature
  The product does not verify, or incorrectly verifies, the cryptographic signature for data.

## Angriffsmuster (CAPEC)

- [CAPEC-463 — Padding Oracle Crypto Attack](https://capec.mitre.org/data/definitions/463.html) _(Severity: High)_
- [CAPEC-475 — Signature Spoofing by Improper Validation](https://capec.mitre.org/data/definitions/475.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [LibreOffice: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-0891) — _BSI-Einstufung: niedrig_
  Ein lokaler Angreifer kann eine Schwachstelle in LibreOffice ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

## Referenzen

- <https://www.libreoffice.org/about-us/security/advisories/cve-2025-2866>
- <https://lists.debian.org/debian-lts-announce/2025/06/msg00002.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-2866/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_