CVE-2026-21634: Buffer Overflow
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21634?
CVE-2026-21634 is considered a medium severity vulnerability that can cause the UniFi Protect Application to restart.
How do I fix CVE-2026-21634?
To fix CVE-2026-21634, you should update your UniFi Protect Application to a version later than 6.1.79.
What products are affected by CVE-2026-21634?
CVE-2026-21634 affects UniFi Protect Application versions 6.1.79 and earlier.
What type of attack can exploit CVE-2026-21634?
CVE-2026-21634 can be exploited by a malicious actor over an adjacent network using a discovery protocol overflow.
What are the potential impacts of CVE-2026-21634?
The potential impact of CVE-2026-21634 includes service disruption due to application restarts.