Ubiquiti security advisory (AV26-850)
Canada's Cyber Centre reports critical vulnerabilities across Ubiquiti UniFi products including UniFi OS Server, Network, Protect, and Access; updates required.
The Canadian Centre for Cyber Security (AV26-850) reports critical vulnerabilities affecting numerous Ubiquiti products, including UniFi OS Server (<=5.1.21), UniFi Network Application (<=10.4.57), UniFi Protect Application (<=7.1.87), and UniFi Access Application (<=4.3.3). Other affected products include UniFi Connect, UID Enterprise Agent, UniFi Talk, UniFi Protect AI Key, Connect Display Cast Pro, and Enterprise Audio/Video Bridge. Administrators should update affected applications and devices; the advisory lists no CVE ids or exploitation details.
- Critical vulnerabilities affect UniFi OS Server 5.1.21 and below plus many UniFi applications
- Affected products include Network, Protect, Access, Connect, Talk, and Protect AI Key
- Canadian Cyber Centre urges users to apply available updates
- Organizations
- Canadian Centre for Cyber Security
- Countries
- Canada
From the original article
Serial Number: AV26-850 Date: August 26, 2026 As of August 26, 2026, Ubiquiti is affected by critical vulnerabilities in the following products: UniFi OS Server Prior to or equal to 5. 1. 21 UniFi Connect Application Prior to or equal to 3.
cyber.gc.ca
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