CVE-2026-77545 Privilege escalation in Cloud Gateways
Attackers with network access and low privileges can exploit active debug code to escalate privileges on UniFi OS devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-77545?
CVE-2026-77545 is a critical vulnerability in Ubiquiti Inc Cloud Gateways, published on 26 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A malicious actor with access to the network, low privileges and under certain conditions could exploit an Active Debug Code vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
Weakness: CWE-489
Which versions are affected by CVE-2026-77545?
How do I fix CVE-2026-77545?
No fix has been published for CVE-2026-77545 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-77545 being exploited?
There is no known exploitation of CVE-2026-77545 in the wild and no public exploit code.
Sources
Also known as GHSA-4c82-32w7-vxc8.