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.
Published: 2026-03-27
Score: 9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 12 May 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics 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'}

cvssV4_0

{'score': 9, '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'}


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'}


Subscriptions

Ubiquiti Unifi Uap-ac Firmware Unifi Uap Firmware Unifi Usg Firmware Unifi Usw Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-12T20:46:16.795Z

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: 2026-04-29T01:00:01.613

Link: CVE-2019-25651

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T23:15:27Z

Weaknesses