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Fencer Vulns
critical 9.8

CVE-2026-77557 json

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect AI Key to escala…

published 2026-08-26 2 mo ago modified 2026-08-28 2 mo ago also EUVD-2026-66404

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect AI Key to escalate privileges on the device.

Patch / fix

  • Ubiquiti Inc UniFi Protect AI Key 2.2.6

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Ubiquiti Inc UniFi Protect AI Key

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.