Unifi Protect
CVE-2026-21633
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessAttacker on adjacent network
-
ExploitExploit discovery protocol vulnerability
-
ExecutionBypass authentication mechanism
-
ImpactGain unauthorized camera access
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. |
| Exploitation Conditions | Adjacent network access required. UniFi Protect Application Version 6.1.79 or earlier with discovery protocol enabled. Attacker must be on same network segment as affected camera or application. |
| Impact | CVSS 8.8 (HIGH). Attack vector: Adjacent Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitation no authentication required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to compromise the affected system. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
UniFi Protect Camera versions 6.1.79 and earlier contain an authentication bypass in their discovery protocol that allows adjacent network attackers to gain unauthorized access without credentials. An attacker on the local network can exploit this vulnerability to compromise camera systems and obtain full control. No patch is currently available, though updating to version 6.2.72 or later is recommended as mitigation.
Earlier versions of this analysis (1)
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). [CVSS 8.8 HIGH]
RemediationAI
Monitor vendor advisories for a patch.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-287 (Improper Authentication). Affects Unifi Protect. 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.
Know when Unifi Protect gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
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.
Zero Day Initiative Advisories
Executive ViewAI
CVE-2026-21633 presents significant security risk, a improper authentication vulnerability rated CVSS 8.8. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls; (2) Enable MFA where possible; (3) Monitor authentication logs for anomalous access.
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)CVE.org
More in Unifi Protect
View allA vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained
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