Improper authentication in Ubiquiti UniFi Protect Application
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
A malicious actor with access to the adjacent network could obtain unauthorized access to a UniFi Protect Camera by exploiting a discovery protocol vulnerability in the Unifi Protect Application (Version 6.1.79 and earlier). Affected Products: UniFi Protect Application (Version 6.1.79 and earlier). Mitigation: Update your UniFi Protect Application to Version 6.2.72 or later.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA UniFi Protect Application (Ubiquiti Inc) Fixed in 6.2.72
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Ubiquiti UniFi Protect Application 6.2.72
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-17426 Memory corruption in Ubiquiti UniFi Protect ApplicationPriority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2026-21633
- 2026-10-03 Alias added: GHSA-pfqp-rqxp-h6v6
References
More Ubiquiti Unifi Protect vulnerabilities
- TI-2026-39284 Improper access control in Ubiquiti UniFi Protect Application CVSS 3.1CRITICAL 9.8
- TI-2026-39283 Improper access control in Ubiquiti UniFi Protect Application CVSS 3.1HIGH 8.6
- TI-2026-39813 Server-side request forgery in Ubiquiti UniFi Protect Application CVSS 3.1CRITICAL 9.9
- TI-2026-40983 SQL injection in Ubiquiti UniFi Protect Application CVSS 3.1HIGH 8.8
- TI-2021-05804 Improper authentication in UniFi Protect application CVSS 3.1CRITICAL 9.6
- TI-2021-05818 A Cross-Origin Resource Sharing (CORS) vulnerability found in UniFi Protect application… CVSS 3.1HIGH 8.8
Sources
- CVE-2026-21633 · CVE Program
- CVE-2026-21633 · NVD
- FIRST EPSS
- GHSA-pfqp-rqxp-h6v6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences