CVE-2019-25651
CRITICAL EPSS 0.3%
Published Mar 27, 20263mo ago · Modified Jun 17, 20261w ago
9.0 CVSS 4.0
Published Mar 27, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
0.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-327
References 2
- community.ui.com https://community.ui.com/releases/Security-Advisory-Bulletin-004-004/462e561b-9efd-4c23-bfa7-53d59cc64ecb
- vulncheck.com https://www.vulncheck.com/advisories/ubiquiti-unifi-devices-use-of-aes-cbc-allows-key-recovery-and-unauthorized-device-control
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.