---
cve: "CVE-2025-0509"
severity: "HIGH"
cvss: 7.3
epss: "0.9%"
vendor: "sparkle-project"
kev: false
exploited: false
published: "2025-02-04 20:01:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T14:43:58+02:00"
---

# CVE-2025-0509

> 7.3 HIGH · 🧪 PoC

## Beschreibung

A security issue was found in Sparkle before version 2.6.4. An attacker can replace an existing signed update with another payload, bypassing Sparkle’s (Ed)DSA signing checks.

## CVSS-Vektor

```
CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Hoch | good |
| PR Privilegien | Hoch | good |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 0ef1ee0220239b3776f433314515fd849025673f (Commit)

## Referenzen

- <https://github.com/sparkle-project/Sparkle/pull/2550>
- <https://sparkle-project.org/documentation/security-and-reliability/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-0509) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_