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Vulnerability record · CVE-2016-9194 · published 6 April 2017

CVE-2016-9194: Cisco wireless lan controller vulnerability

Cisco · Wireless Lan Controller

A vulnerability in 802.11 Wireless Multimedia Extensions (WME) action frame processing in Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of the 802.11 WME packet header. An attacker could exploit this vulnerability by sending malformed 802.11 WME frames to a targeted device. A successful exploit could allow the attacker to cause the WLC to reload unexpectedly. The fixed versions are 8.0.140.0, 8.2.130.0, and 8.3.111.0. Cisco Bug IDs: CSCva86353.

6.5 CVSS 3.0 Medium EPSS 0.78% · top 45.9% CWE-399 · CWE-399
6.5CVSS 3.0 base score, v2 6.1
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A vulnerability in 802.11 Wireless Multimedia Extensions (WME) action frame processing in Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of the 802.11 WME packet header. An attacker could exploit this vulnerability by sending malformed 802.11 WME frames to a targeted device. A successful exploit could allow the attacker to cause the WLC to reload unexpectedly. The fixed versions are 8.0.140.0, 8.2.130.0, and 8.3.111.0. Cisco Bug IDs: CSCva86353.

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/97424 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038182
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-wlc Vendor Advisory
http://www.securityfocus.com/bid/97424 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038182
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-wlc Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-0703Cisco wireless lan controller software race condition vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition in the status of the administr…EPSS 2.0%8.6CVE-2020-3560Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on an affecte…EPSS 1.4%8.6CVE-2020-3559Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. Th…EPSS 1.4%7.8CVE-2018-0417Cisco wireless lan controller software permissions and access controls vulnerabilityA vulnerability in TACACS authentication with Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, local attacker to perform ce…EPSS 3.2%7.8CVE-2014-0706Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.2 before 7.2.115.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of service (…EPSS 1.3%7.8CVE-2014-0707Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of service (device restart) v…EPSS 1.3%7.4CVE-2020-3552Cisco wireless lan controller null pointer dereference vulnerabilityA vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to ca…EPSS 0.49%7.1CVE-2015-0622Cisco wireless lan controller improper input validation vulnerabilityThe Wireless Intrusion Detection (aka WIDS) functionality on Cisco Wireless LAN Controller (WLC) devices allows remote attackers to cause a denial of…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2016-9194), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.