Vulnerability · Published Aug 26, 2026 · Assigned by Ubiquiti
CVE-2026-77542
Critical 9.1
In plain English
A critical-severity improper input validation in UID Enterprise Agent from Ubiquiti Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)1.3%top 29.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UID Enterprise Agent to execute a Command Injection on the host device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Ubiquiti Inc | UID Enterprise Agent | 0 – before 1.62.1 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H