Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.

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Vendors Products
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Unifi Uap-ac Firmware Subscribe
Unifi Uap Firmware Subscribe
Unifi Usg Firmware Subscribe
Unifi Usw Firmware Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 30 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Ubiquiti
Ubiquiti unifi Uap-ac Firmware
Ubiquiti unifi Uap Firmware
Ubiquiti unifi Usg Firmware
Ubiquiti unifi Usw Firmware
Vendors & Products Ubiquiti
Ubiquiti unifi Uap-ac Firmware
Ubiquiti unifi Uap Firmware
Ubiquiti unifi Usg Firmware
Ubiquiti unifi Usw Firmware

Sat, 28 Mar 2026 03:15:00 +0000

Type Values Removed Values Added
Description Ubiquiti UniFi Network Controller prior to 5.10.12 (excluding 5.6.42), UAP FW prior to 4.0.6, UAP-AC, UAP-AC v2, and UAP-AC Outdoor FW prior to 3.8.17, USW FW prior to 4.0.6, USG FW prior to 4.4.34 uses AES-CBC encryption for device-to-controller communication, which contains cryptographic weaknesses that allow attackers to recover encryption keys from captured traffic. Attackers with adjacent network access can capture sufficient encrypted traffic and exploit AES-CBC mode vulnerabilities to derive the encryption keys, enabling unauthorized control and management of network devices.
Title Ubiquiti UniFi Devices Use of AES-CBC Allows Key Recovery and Unauthorized Device Control
Weaknesses CWE-327
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-30T17:55:00.222Z

Reserved: 2026-03-26T20:24:49.635Z

Link: CVE-2019-25651

cve-icon Vulnrichment

Updated: 2026-03-30T17:51:14.240Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-27T22:16:19.107

Modified: 2026-03-30T13:26:07.647

Link: CVE-2019-25651

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-30T07:59:19Z

Weaknesses