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Ubiquiti Inc UniFi OS Server vulnerabilities

20 known vulnerabilities, 3 confirmed exploited in the wild (CISA KEV), 20 published in the last 12 months.

Check whether your Ubiquiti Inc UniFi OS Server version is affected

Exploited Ubiquiti Inc UniFi OS Server vulnerabilities

• CVE-2026-34910 — Ubiquiti UniFi OS Improper Input Validation Vulnerability
• CVE-2026-34909 — Ubiquiti UniFi OS Path Traversal Vulnerability
• CVE-2026-34908 — Ubiquiti UniFi OS Improper Access Control Vulnerability

Latest Ubiquiti Inc UniFi OS Server vulnerabilities

• CVE-2026-77550 — (CVSS 10.0)
• CVE-2026-77549 — (CVSS 9.0)
• CVE-2026-77545 — (CVSS 9.0)
• CVE-2026-77540 — (CVSS 9.1)
• CVE-2026-77539 — (CVSS 9.1)
• CVE-2026-77536 — (CVSS 9.9)
• CVE-2026-77534 — (CVSS 9.9)
• CVE-2026-55110 — (CVSS 6.1)
• CVE-2026-54404 — (CVSS 8.8)
• CVE-2026-54403 — (CVSS 8.6)
• CVE-2026-54402 — (CVSS 8.8)
• CVE-2026-54401 — (CVSS 8.8)
• CVE-2026-47370 — (CVSS 9.9)
• CVE-2026-47369 — (CVSS 9.9)
• CVE-2026-47368 — (CVSS 8.6)
• CVE-2026-34911 — (CVSS 7.7)
• CVE-2026-34910 — Ubiquiti UniFi OS Improper Input Validation Vulnerability (CVSS 10.0) — exploited
• CVE-2026-34909 — Ubiquiti UniFi OS Path Traversal Vulnerability (CVSS 10.0) — exploited
• CVE-2026-34908 — Ubiquiti UniFi OS Improper Access Control Vulnerability (CVSS 10.0) — exploited
• CVE-2026-33000 — (CVSS 9.1)