CVE-2026-77557 Privilege escalation in UniFi Protect AI Key
A network-accessible attacker can exploit improper access control in the UniFi Protect AI Key to escalate privileges on the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77557?
CVE-2026-77557 is a critical vulnerability in Ubiquiti Inc UniFi Protect AI Key, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-284
Which versions are affected by CVE-2026-77557?
How do I fix CVE-2026-77557?
No fix has been published for CVE-2026-77557 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-77557 being exploited?
There is no known exploitation of CVE-2026-77557 in the wild and no public exploit code.
Sources
Also known as GHSA-4jjr-c27v-p3c2.