Ubiquiti UniFi OS known exploited vulnerabilities
We track 3 CVEs in Ubiquiti UniFi OS. All of them are on CISA's Known Exploited Vulnerabilities catalog, meaning CISA has evidence of exploitation in the wild (listed 2026–2026). The most recent is CVE-2026-34910, added to KEV on .
- CVEs tracked
- 3
- On CISA KEV
- 3
- Ransomware use
- 0
- Rated critical
- 3
Every Ubiquiti UniFi OS CVE we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV | Patch by |
|---|---|---|---|---|---|
| CVE-2026-34910 Ubiquiti UniFi OS Improper Input Validation Vulnerability | [ CRITICAL ] | 10.0 | 45.8% | ||
| CVE-2026-34909 Ubiquiti UniFi OS Path Traversal Vulnerability | [ CRITICAL ] | 10.0 | 1.8% | ||
| CVE-2026-34908 Ubiquiti UniFi OS Improper Access Control Vulnerability | [ CRITICAL ] | 10.0 | 15.2% |
Sorted by date added to KEV. Severity and CVSS as stated by NVD or the vendor; EPSS from FIRST.org. "Patch by" is CISA's BOD 22-01 deadline for US federal agencies, a useful priority signal for everyone else. Machine-readable: /api/v1/vendors/ubiquiti.json.
Every row links to its CVE record with the CISA required action, catalog coverage and primary sources. We describe impact and remediation only; no exploit code. See the full KEV tracker or compare KEV catalogs.