CVE-2026-21634
Unknown Unknown - Not Provided
Buffer Overflow in UniFi Protect Discovery Protocol Causes Restart

Publication date: 2026-01-05

Last updated on: 2026-01-05

Assigner: HackerOne

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.
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Meta Information
Published
2026-01-05
Last Modified
2026-01-05
Generated
2026-06-16
AI Q&A
2026-01-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21634
EUVD
EUVD-2026-0826
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ubiquiti unifi_protect_application to 6.2.72 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability allows a malicious actor with access to the adjacent network to cause a buffer overflow in the UniFi Protect Application's discovery protocol (version 6.1.79 and earlier), which results in the application restarting.

Impact Analysis

The impact of this vulnerability is that an attacker can cause the UniFi Protect Application to restart unexpectedly, potentially disrupting its normal operation and availability.

Mitigation Strategies

Update your UniFi Protect Application to Version 6.2.72 or later.

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