CVE-2026-21634 is a medium severity vulnerability with a CVSS score of 6.5. No known exploits currently, and patches are available.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
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.