CVE-2026-77542 describes an Improper Input Validation vulnerability in the UID Enterprise Agent software. A malicious actor with network access and high privileges can exploit this flaw to perform Command Injection on the host device. The vulnerability requires elevated privileges to exploit, limiting the attack surface somewhat. The impact is severe as successful exploitation allows arbitrary command execution on the host. The vulnerability was disclosed via NVD and an accompanying Ubiquiti community security advisory bulletin. No patch or mitigation details are included in the article content itself. The severity is rated High based on the nature of command injection and potential for full host compromise.