CVE-2026-77554 Command injection in UniFi Talk Application
A network-based attacker can execute arbitrary commands on the host device via improper input validation in the UniFi Talk Application.
- 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-2026-77554?
CVE-2026-77554 is a critical command injection vulnerability in Ubiquiti Inc UniFi Talk 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 Input Validation vulnerability found in UniFi Talk Application to execute a Command Injection on the host device.
Weakness: CWE-20
Which versions are affected by CVE-2026-77554?
How do I fix CVE-2026-77554?
No fix has been published for CVE-2026-77554 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-77554 being exploited?
There is no known exploitation of CVE-2026-77554 in the wild and no public exploit code.
Sources
Also known as GHSA-7p8g-c87g-jxrv.