CVE-2026-77538 Privilege escalation in UniFi Connect Application
A network-accessible attacker can exploit improper access controls in the UniFi Connect Application to escalate privileges.
- 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-2026-77538?
CVE-2026-77538 is a high-severity vulnerability in Ubiquiti Inc UniFi Connect Application, 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 Connect Application to escalate privileges within the UniFi Connect Application.
Weakness: CWE-284
Which versions are affected by CVE-2026-77538?
How do I fix CVE-2026-77538?
No fix has been published for CVE-2026-77538 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-77538 being exploited?
There is no known exploitation of CVE-2026-77538 in the wild and no public exploit code.
Sources
Also known as GHSA-r3g7-gfh5-gvp2.