Ubiquiti Inc UniFi Access Application vulnerabilities

4 CVEs affecting Ubiquiti Inc UniFi Access Application, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-77553, published 2026-08-26.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-77547, published 2026-08-26. Critical severity, CVSS 9.9. EPSS: 1.4% chance of exploitation in the next 30 days. A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host…
• CVE-2026-77546, published 2026-08-26. Critical severity, CVSS 9.9. EPSS: 1.4% chance of exploitation in the next 30 days. A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host…
• CVE-2026-77543, published 2026-08-26. Critical severity, CVSS 9.9. EPSS: 1.4% chance of exploitation in the next 30 days. A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host…
• CVE-2026-77553, published 2026-08-26. Critical severity, CVSS 9.9. EPSS: 0.5% chance of exploitation in the next 30 days. A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.