Unrated severityNVD Advisory· Published Jan 5, 2026· Updated Jan 5, 2026
CVE-2026-21634
CVE-2026-21634
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.
Affected products
2<=6.1.79+ 1 more
- (no CPE)range: <=6.1.79
- (no CPE)range: 6.1.79
Patches
Vulnerability mechanics
References
1News mentions
1- ZDI-26-128: (Pwn2Own) Ubiquiti Networks AI Pro Uncaught Exception Denial-of-Service VulnerabilityZero Day Initiative · Feb 25, 2026