---
cve: "CVE-2025-68471"
severity: "MEDIUM"
cvss: 6.5
epss: "0.4%"
vendor: "avahi"
kev: false
exploited: false
published: "2026-01-12 18:15:48"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T01:16:01+02:00"
---

# CVE-2025-68471

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1 (Commit)

## Referenzen

- <https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg>
- <https://github.com/avahi/avahi/issues/678>
- <https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-68471) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_