CVE-2016-9194

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.

Published: 2017-04-06 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-9194 is rated Moderate Risk (44.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.78%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-9194

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.18% 0.78% +0.60%
2 2025-03-17 0.10% 0.18% +0.08%
3 2023-03-07 — 0.10% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-9194

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.1 2.0 MEDIUM
AV:A/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 6.5 6.9 [email protected]

Weakness enumeration for CVE-2016-9194

Affected software / configurations for CVE-2016-9194

Vendor Product Version Raw CPE
cisco wireless_lan_controller 5.2.157.0 cpe:2.3:a:cisco:wireless_lan_controller:5.2.157.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 5.2.169.0 cpe:2.3:a:cisco:wireless_lan_controller:5.2.169.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 6.0_base cpe:2.3:a:cisco:wireless_lan_controller:6.0_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.0_base cpe:2.3:a:cisco:wireless_lan_controller:7.0_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.1_base cpe:2.3:a:cisco:wireless_lan_controller:7.1_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.2_base cpe:2.3:a:cisco:wireless_lan_controller:7.2_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.3.101.0 cpe:2.3:a:cisco:wireless_lan_controller:7.3.101.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.3.103.8 cpe:2.3:a:cisco:wireless_lan_controller:7.3.103.8:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.3.112 cpe:2.3:a:cisco:wireless_lan_controller:7.3.112:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.3_base cpe:2.3:a:cisco:wireless_lan_controller:7.3_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4.1.1 cpe:2.3:a:cisco:wireless_lan_controller:7.4.1.1:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4.100 cpe:2.3:a:cisco:wireless_lan_controller:7.4.100:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4.100.60 cpe:2.3:a:cisco:wireless_lan_controller:7.4.100.60:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4.110.0 cpe:2.3:a:cisco:wireless_lan_controller:7.4.110.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4.121.0 cpe:2.3:a:cisco:wireless_lan_controller:7.4.121.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.4_base cpe:2.3:a:cisco:wireless_lan_controller:7.4_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.5.102.0 cpe:2.3:a:cisco:wireless_lan_controller:7.5.102.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.5.102.11 cpe:2.3:a:cisco:wireless_lan_controller:7.5.102.11:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.5_base cpe:2.3:a:cisco:wireless_lan_controller:7.5_base:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.6.1.62 cpe:2.3:a:cisco:wireless_lan_controller:7.6.1.62:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.6.100.0 cpe:2.3:a:cisco:wireless_lan_controller:7.6.100.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.6.110.0 cpe:2.3:a:cisco:wireless_lan_controller:7.6.110.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.6.120.0 cpe:2.3:a:cisco:wireless_lan_controller:7.6.120.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 7.6.130.0 cpe:2.3:a:cisco:wireless_lan_controller:7.6.130.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.0 cpe:2.3:a:cisco:wireless_lan_controller:8.0.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.0.30220.385 cpe:2.3:a:cisco:wireless_lan_controller:8.0.0.30220.385:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.72.140 cpe:2.3:a:cisco:wireless_lan_controller:8.0.72.140:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.100 cpe:2.3:a:cisco:wireless_lan_controller:8.0.100:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.115.0 cpe:2.3:a:cisco:wireless_lan_controller:8.0.115.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.120.0 cpe:2.3:a:cisco:wireless_lan_controller:8.0.120.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.0.121.0 cpe:2.3:a:cisco:wireless_lan_controller:8.0.121.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.1.0 cpe:2.3:a:cisco:wireless_lan_controller:8.1.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.1.104.37 cpe:2.3:a:cisco:wireless_lan_controller:8.1.104.37:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.1.111.0 cpe:2.3:a:cisco:wireless_lan_controller:8.1.111.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.1.122.0 cpe:2.3:a:cisco:wireless_lan_controller:8.1.122.0:*:*:*:*:*:*:*
cisco wireless_lan_controller 8.1.130.0 cpe:2.3:a:cisco:wireless_lan_controller:8.1.130.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_6.0 182.0 cpe:2.3:a:cisco:wireless_lan_controller_6.0:182.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_6.0 188.0 cpe:2.3:a:cisco:wireless_lan_controller_6.0:188.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_6.0 196.0 cpe:2.3:a:cisco:wireless_lan_controller_6.0:196.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_6.0 199.4 cpe:2.3:a:cisco:wireless_lan_controller_6.0:199.4:*:*:*:*:*:*:*
cisco wireless_lan_controller_6.0 202.0 cpe:2.3:a:cisco:wireless_lan_controller_6.0:202.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 98.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:98.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 98.218 cpe:2.3:a:cisco:wireless_lan_controller_7.0:98.218:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 116.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:116.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 220.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:220.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 240.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:240.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 250.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:250.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.0 252.0 cpe:2.3:a:cisco:wireless_lan_controller_7.0:252.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.1 91.0 cpe:2.3:a:cisco:wireless_lan_controller_7.1:91.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.2 103.0 cpe:2.3:a:cisco:wireless_lan_controller_7.2:103.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.4 1.19 cpe:2.3:a:cisco:wireless_lan_controller_7.4:1.19:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.4 1.54 cpe:2.3:a:cisco:wireless_lan_controller_7.4:1.54:*:*:*:*:*:*:*
cisco wireless_lan_controller_7.4 140.0 cpe:2.3:a:cisco:wireless_lan_controller_7.4:140.0:*:*:*:*:*:*:*

References for CVE-2016-9194

cvelogic Threat Intelligence