Unifi Protect
CVE-2021-22943
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.6 (CRITICAL). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to bypass authentication mechanisms to gain unauthorized access. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
A vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained access to a network to subsequently control the Protect camera(s) assigned to. Rated critical severity (CVSS 9.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. A vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained access to a network to subsequently control the Protect camera(s) assigned to said network. This vulnerability is fixed in UniFi Protect application V1.19.0 and later. Affected products include: Ui Unifi Protect.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
A vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained access to a network to subsequently control the Protect camera(s) assigned to said network. This vulnerability is fixed in UniFi Protect application V1.19.0 and later.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
More in Unifi Protect
View allUniFi Protect Camera versions 6.1.79 and earlier contain an authentication bypass in their discovery protocol that allow
A Cross-Origin Resource Sharing (CORS) vulnerability found in UniFi Protect application Version 1.19.2 and earlier allow
A vulnerability found in UniFi Protect application V1.18.1 and earlier allows a malicious actor with a view-only role an
UniFi Protect Application versions 6.1.79 and earlier suffer from a buffer overflow in the discovery protocol that allow
An information exposure vulnerability exists in UniFi Protect before v1.13.4-beta.5 that allowed unauthenticated attacke
GitHub PoC
Exploit-DB