TI-2018-00379 Aliases CVE-2018-0420 GHSA-5wmr-q26h-9p6x

Cisco Wireless LAN Controller Software Directory Traversal Vulnerability

LOW 36CWE-22Published 2018-10-17 · Updated 2024-11-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

A vulnerability in the web-based interface of Cisco Wireless LAN Controller Software could allow an authenticated, remote attacker to view sensitive information. The issue is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames and pathnames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view system files on the targeted device, which may contain sensitive information.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.04638 91st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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)	all versions	—	No fix listed	CNA

Cisco Wireless LAN Controller (WLC) VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:wireless_lan_controller_software:8.2\(151.0\):::::::*	8.2(151.0)	Vulnerable	Cisco

cpe:2.3:o:cisco:wireless_lan_controller_software:8.2\(151.0\):*:*:*:*:*:*:* Versions 8.2(151.0) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0420
2026-10-03 Alias added: GHSA-5wmr-q26h-9p6x

References

Advisory 1

20181017 Cisco Wireless LAN Controller Software Directory Traversal Vulnerability

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