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
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.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ubiquiti | unifi_protect_application | to 6.2.72 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
What immediate steps should I take to mitigate this vulnerability?
Update your UniFi Protect Application to Version 6.2.72 or later.
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