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CVE-2025-52665

CRITICALCVSS 10/10EPSS 40.52%

Last modified

CVE-2025-52665 is a critical-severity vulnerability rated 10/10 on the CVSS scale. A malicious actor with access to the management network could exploit a misconfiguration in UniFi’s door access application, UniFi Access, that exposed a management API without proper authentication. This vulnerability was introduced in Version 3.3.22 and was fixed in Version 4.0.21 and later.  Affected Products: UniFi Access Application (Version 3.3.22 through 3.4.31). EPSS estimates a 40.52% chance of exploitation in the next 30 days.

Description

A malicious actor with access to the management network could exploit a misconfiguration in UniFi’s door access application, UniFi Access, that exposed a management API without proper authentication. This vulnerability was introduced in Version 3.3.22 and was fixed in Version 4.0.21 and later.  Affected Products: UniFi Access Application (Version 3.3.22 through 3.4.31). 
 Mitigation: Update your UniFi Access Application to Version 4.0.21 or later.

Metrics

CVSS 3.1
10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
40.52%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
UiUnifi Access>= 3.3.22, < 4.0.21

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-52665?
A malicious actor with access to the management network could exploit a misconfiguration in UniFi’s door access application, UniFi Access, that exposed a management API without proper authentication. This vulnerability was introduced in Version 3.3.22 and was fixed in Version 4.0.21 and later.  Affected Products: UniFi Access Application (Version 3.3.22 through 3.4.31). 
 Mitigation: Update your UniFi Access Application to Version 4.0.21 or later.
How severe is CVE-2025-52665?
CVE-2025-52665 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 40.52% probability of exploitation in the next 30 days.
How do I fix CVE-2025-52665?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-52665?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST