CVE-2017-3834

CRITICAL

Cisco Aironet 1830/1850 < 8.2.111.0 - RCE via Default SSH Credentials

Title source: llm
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038181
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97422

Scores

CVSS v3 9.8
EPSS 0.0446
EPSS Percentile 90.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-1188 CWE-255
Status published
Products (9)
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
n/a/Cisco Aironet 1830 Series and 1850 Series Access Points Cisco Aironet 1830 Series and 1850 Series Access Points
Published Apr 06, 2017
Tracked Since Feb 18, 2026