TI-2018-00209 Aliases CVE-2018-0248 GHSA-9qwv-6vp9-5hpm

Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities

LOW 34CWE-20Published 2019-04-17 · Updated 2024-11-21

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA.

Summary

A vulnerability in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an aUTHENTICated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid administrator credentials on the device. This vulnerability is due to incomplete input validation for unexpected configuration options that the attacker could submit while accessing the GUI configuration menus. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted user input when using the administrative GUI configuration feature. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Software versions prior to 8.3.150.0, 8.5.140.0, 8.8.111.0 are affected by this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01995 80th percentileScored 2026-11-07

Fix Fixed Cisco Wireless LAN Controller (WLC) (Cisco): 8.3.150.0, 8.5.140.0, 8.8.111.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Wireless LAN Controller (WLC)	before 8.3.150.0; before 8.5.140.0; before 8.8.111.0	8.3.150.0, 8.5.140.0, 8.8.111.0	Patch available	CNA

Cisco Wireless LAN Controller (WLC) VendorCisco Affected before 8.3.150.0; before 8.5.140.0; before 8.8.111.0 Fixed in 8.3.150.0, 8.5.140.0, 8.8.111.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:wireless_lan_controller_software::::::::	before 8.3.150.0; 8.4 to before 8.5.140.0; 8.6 to before 8.8.111.0	Vulnerable	Cisco

cpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* Versions before 8.3.150.0; 8.4 to before 8.5.140.0; 8.6 to before 8.8.111.0 Vulnerable ·Cisco

Remediation

Fix · CNA Cisco Wireless LAN Controller (WLC) (Cisco) Fixed in 8.3.150.0, 8.5.140.0, 8.8.111.0

Timeline

2026-10-02 Threatist record created from CVE-2018-0248
2026-10-03 Alias added: GHSA-9qwv-6vp9-5hpm

References

Advisory 1

20190417 Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities

TI-2019-11388 Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability CVSS 3.1MEDIUM 6.5
TI-2016-01254 Buffer overflow in the redirection functionality in Cisco Wireless LAN Controller (WLC)… CVSS 3.1CRITICAL 9.8
TI-2018-00213 Resource management flaw in Cisco Wireless LAN Controller CVSS 3.0HIGH 8.6
TI-2007-01958 The SNMP implementation in the Cisco Wireless LAN Controller (WLC) before 20070419 uses… CVSS 2.0HIGH 10.0
TI-2015-05301 Cisco Wireless LAN Controller (WLC) devices with software 7.6.x, 8.0 before 8.0.121.0… CVSS 3.0CRITICAL 9.8
TI-2014-00660 Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS… CVSS 2.0HIGH 10.0

See all 87 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences