Ubiquiti UniFi Protect Application up to 6.2.71 improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Ubiquiti UniFi Protect Application up to 6.2.71. This impacts an unknown function. Executing a manipulation can lead to improper authorization. This vulnerability appears as CVE-2026-21633. The attacker needs to be present on the local network. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Ubiquiti UniFi Protect Application up to 6.2.71. It has been declared as critical. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at community.ui.com. This vulnerability was named CVE-2026-21633 since 01/01/2026. The exploitation appears to be easy. Access to the local network is required for this attack. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 6.2.72 eliminates this vulnerability. The upgrade is hosted for download at community.ui.com.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-0828) and CERT Bund (WID-SEC-2026-0014). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Ubiquiti UniFi

Productinfo

Vendor

• Ubiquiti

Name

• UniFi Protect Application

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 6.2.9
• 6.2.10
• 6.2.11
• 6.2.12
• 6.2.13
• 6.2.14
• 6.2.15
• 6.2.16
• 6.2.17
• 6.2.18
• 6.2.19
• 6.2.20
• 6.2.21
• 6.2.22
• 6.2.23
• 6.2.24
• 6.2.25
• 6.2.26
• 6.2.27
• 6.2.28
• 6.2.29
• 6.2.30
• 6.2.31
• 6.2.32
• 6.2.33
• 6.2.34
• 6.2.35
• 6.2.36
• 6.2.37
• 6.2.38
• 6.2.39
• 6.2.40
• 6.2.41
• 6.2.42
• 6.2.43
• 6.2.44
• 6.2.45
• 6.2.46
• 6.2.47
• 6.2.48
• 6.2.49
• 6.2.50
• 6.2.51
• 6.2.52
• 6.2.53
• 6.2.54
• 6.2.55
• 6.2.56
• 6.2.57
• 6.2.58
• 6.2.59
• 6.2.60
• 6.2.61
• 6.2.62
• 6.2.63
• 6.2.64
• 6.2.65
• 6.2.66
• 6.2.67
• 6.2.68
• 6.2.69
• 6.2.70
• 6.2.71

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion