CVE-2026-21634: ubiquiti inc unifi protect application

Vulnerability summary

CVE-2026-21634 is a medium (CVSS 6.5) vulnerability in ubiquiti inc unifi protect application. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.9% of scored vulnerabilities.

Timeline

1. 05-01-2026
   PublishedVulnerability first disclosed.
2. 05-01-2026
   Last modifiedVulnerability information updated.

Description

A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart. Affected Products: UniFi Protect Application (Version 6.1.79 and earlier). Mitigation: Update your UniFi Protect Application to Version 6.2.72 or later.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.