---
cve: "CVE-2026-34933"
severity: "MEDIUM"
cvss: 5.5
epss: "0.2%"
vendor: "avahi"
kev: false
exploited: false
published: "2026-04-03 23:17:05"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:11:14+02:00"
---

# CVE-2026-34933

> 5.5 MEDIUM · 🧪 PoC

## Beschreibung

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 625ca0fac19229f6dfa3a6c6b698ae657187e50c (Commit)

## Referenzen

- <https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc>
- <https://github.com/avahi/avahi/pull/891>
- <https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c>
- <http://www.openwall.com/lists/oss-security/2026/04/11/9>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34933) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_