---
cve: "CVE-2026-21634"
severity: "MEDIUM"
cvss: 6.5
epss: "38%"
vendor: "Ubiquiti Inc"
kev: false
exploited: false
published: "2026-01-05 17:15:47"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T19:13:31+02:00"
---

# CVE-2026-21634

> 6.5 MEDIUM

## Beschreibung

A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart.


Affected Products:
UniFi Protect Application (Version 6.1.79 and earlier). 
 
Mitigation:
Update your UniFi Protect Application to Version 6.2.72 or later.

## CVSS-Vektor

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

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

## Referenzen

- <https://community.ui.com/releases/Security-Advisory-Bulletin-058-058/6922ff20-8cd7-4724-8d8c-676458a2d0f9>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-21634) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_