CVE-2026-21634 – “UniFi Protect Application Discovery Protocol Buffer Overflow Vulnerability”

CVE ID : CVE-2026-21634

Published : Jan. 5, 2026, 5:15 p.m. | 1 hour, 10 minutes ago

Description : 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.

Severity: 6.5 | MEDIUM

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