CVE-2012-5991

screens/base/web_auth_custom.html on Cisco Wireless LAN Controller (WLC) devices with software 7...

6.3 MediumPublic exploit

screens/base/web_auth_custom.html on Cisco Wireless LAN Controller (WLC) devices with software 7.2.110.0 allows remote authenticated users to cause a denial of service (device reload) via a certain buttonClicked value in an internal webauth_type request, aka Bug ID CSCud50209.

Exploit likelihood

5.52%Up 4.5 points since Feb 4, 2022

What each source reports

NVD Score used 6.3

Record: CVE-2012-5991
CVSS 2.0: 6.3 MediumAV:N/AC:M/Au:S/C:N/I:N/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2012-5991
Updated: 2026-11-02

EUVDEUVD-2012-5865 No score

Record: EUVD-2012-5865
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6hqg-ghvh-32h4 No score

screens/base/web_auth_custom.html on Cisco Wireless LAN Controller (WLC) devices with software 7...

Record: GHSA-6hqg-ghvh-32h4
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Cisco Wireless Lan Controller 7.2.110.0 - Multiple Vulnerabilities	2012-12-13

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-5991 is a medium vulnerability (CVSS 6.3) in Cisco 2000 Wireless Lan Controller, published December 19, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.52%, the 92nd percentile. No source names a fixed version.