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CVE-2017-3834

CRITICAL

A vulnerability in Cisco Aironet 1830 Series and Cisco Aironet 1850 Series Access Points running Cisco Mobility Express Software could allow an unauthenticated, remote attacker to take complete control of an affected device. The vulnerability is due to the existence of default credentials for an affected device that is running Cisco Mobility Express Software, regardless of whether the device is configured as a master, subordinate, or standalone access point. An attacker who has layer 3 connectivity to an affected device could use Secure Shell (SSH) to log in to the device with elevated privileges. A successful exploit could allow the attacker to take complete control of the device. This vulnerability affects Cisco Aironet 1830 Series and Cisco Aironet 1850 Series Access Points that are running an 8.2.x release of Cisco Mobility Express Software prior to Release 8.2.111.0, regardless of whether the device is configured as a master, subordinate, or standalone access point. Release 8.2 was the first release of Cisco Mobility Express Software for next generation Cisco Aironet Access Points. Cisco Bug IDs: CSCva50691.

Published: Apr 6, 2017 Modified: Jun 17, 2026
CWE-255 CWE-1188

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

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

Affected Products (8)

Vendor Product Version
cisco aironet_access_point_firmware 8.2.100.0
cisco aironet_access_point_firmware 8.2.102.43
cisco aironet_access_point_firmware 8.2.102.139
cisco aironet_access_point_firmware 8.2.111.0
cisco aironet_access_point_firmware 8.2.121.12
cisco aironet_access_point_firmware 8.2.130.0
cisco aironet_access_point_firmware 90.57
cisco aironet_access_point_firmware 102.0

GitHub Security Advisory GHSA-c6vq-6rwf-mq8q

A vulnerability in Cisco Aironet 1830 Series and Cisco Aironet 1850 Series Access Points running...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 4.46%

Top 9% most likely to be exploited

Threat Score 40.5 / 100

Data Sources

NVD EPSS GitHub