CVE-2026-21634

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…

Medium · published January 5, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
36.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00431 · 36.3th percentile
Published
2026-01-05T16:47Z
EPSS history
Timeline
  • 05 JAN 16:47Z
    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…
    cvelistv5