CVE-2026-21633
Quick assessment
Affected
Ubiquiti Inc UniFi Protect Application
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Ubiquiti UniFi Protect Application是美国优比快（Ubiquiti）公司的一款安全应用程序。 Ubiquiti UniFi Protect Application 6.1.79及之前版本存在安全漏洞，该漏洞源于发现协议存在漏洞，可能导致未经授权的访问。
Possible ATT&CK Techniques 2 AI
T1046 · Network Service Discovery T1590.003 · Network Trust Dependencies
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I. Basic Information for CVE-2026-21633
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious actor with access to the adjacent network could obtain unauthorized access to a UniFi Protect Camera by exploiting a discovery protocol vulnerability in the Unifi Protect Application (Version 6.1.79 and earlier).
Affected Products:
UniFi Protect Application (Version 6.1.79 and earlier).
Mitigation:
Update your UniFi Protect Application to Version 6.2.72 or later.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Ubiquiti UniFi Protect Application 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ubiquiti UniFi Protect Application是美国优比快（Ubiquiti）公司的一款安全应用程序。 Ubiquiti UniFi Protect Application 6.1.79及之前版本存在安全漏洞，该漏洞源于发现协议存在漏洞，可能导致未经授权的访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Ubiquiti Inc | UniFi Protect Application | 6.1.79 ~ 6.2.72 | - |
|
II. Public POCs for CVE-2026-21633
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-21633 (1)
Same Patch Batch · Ubiquiti Inc · 2026-01-05 · 4 CVEs total
| CVE-2025-59467 | 7.5 HIGH | Ubiquiti UCRM Argentina AFIP invoices Plugin 安全漏洞 |
| CVE-2026-21634 | 6.5 MEDIUM | Ubiquiti UniFi Protect Application 安全漏洞 |
| CVE-2026-21635 | 5.3 MEDIUM | Ubiquiti EV Station Lite 安全漏洞 |
IV. Related Vulnerabilities
Same product: UniFi Protect Application
V. Comments for CVE-2026-21633
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