TI-2019-11376 Aliases CVE-2019-15262 GHSA-mhfm-gfg6-rpxf

Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability

MEDIUM 42CWE-20Published 2019-10-16 · Updated 2024-11-19

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-404.

Summary

A vulnerability in the Secure Shell (SSH) session management for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the SSH process is not properly deleted when an SSH connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly opening SSH connections to an affected device. A successful exploit could allow the attacker to exhaust system resources by initiating multiple SSH connections to the device that are not effectively terminated, which could result in a DoS condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01415 72nd 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: Yes
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 · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:5520_wireless_lan_controller_firmware::::::::	up to 8.5.140.0	Vulnerable	Cisco
cpe:2.3:h:cisco:5520_wireless_lan_controller:-:::::::*	not specified by NVD	Running on	Cisco
cpe:2.3:o:cisco:5508_wireless_lan_controller_firmware::::::::	up to 8.5.140.0	Vulnerable	Cisco
cpe:2.3:h:cisco:5508_wireless_lan_controller:-:::::::*	not specified by NVD	Running on	Cisco

cpe:2.3:o:cisco:5520_wireless_lan_controller_firmware:*:*:*:*:*:*:*:* Versions up to 8.5.140.0 Vulnerable ·Cisco
cpe:2.3:h:cisco:5520_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
cpe:2.3:o:cisco:5508_wireless_lan_controller_firmware:*:*:*:*:*:*:*:* Versions up to 8.5.140.0 Vulnerable ·Cisco
cpe:2.3:h:cisco:5508_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2019-10-16
Cisco Wireless LAN Controller (WLC) n/a
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2019-11379 Cisco Wireless LAN Controller Path Traversal VulnerabilityPriority LOW 21
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2019-15262
2026-10-03 Alias added: GHSA-mhfm-gfg6-rpxf

References

Advisory 1

20191016 Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability

Sources

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