CVE-2012-5991

Exp

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.

Published: 2012-12-19 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-5991 is rated High Exploit Risk (78.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 14.06%, 94th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +9.15% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2012-5991

EDB-ID Source Kind Published Link
23361 exploit_db edb 2012-12-13 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2012-5991

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 2025-08-31 4.91% 14.06% +9.15%
2 2025-03-30 4.22% 4.91% +0.69%
3 2025-03-29 — 4.22% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-5991

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 2.0 MEDIUM
AV:N/AC:M/Au:S/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 6.8 6.9 [email protected]

Weakness enumeration for CVE-2012-5991

Affected software / configurations for CVE-2012-5991

Vendor Product Version Raw CPE
cisco wireless_lan_controller_software 7.2.110.0 cpe:2.3:o:cisco:wireless_lan_controller_software:7.2.110.0:*:*:*:*:*:*:*
cisco 2000_wireless_lan_controller — cpe:2.3:h:cisco:2000_wireless_lan_controller:*:*:*:*:*:*:*:*
cisco 2100_wireless_lan_controller — cpe:2.3:h:cisco:2100_wireless_lan_controller:*:*:*:*:*:*:*:*
cisco 2500_wireless_lan_controller — cpe:2.3:h:cisco:2500_wireless_lan_controller:-:*:*:*:*:*:*:*
cisco 4100_wireless_lan_controller — cpe:2.3:h:cisco:4100_wireless_lan_controller:*:*:*:*:*:*:*:*
cisco 4400_wireless_lan_controller — cpe:2.3:h:cisco:4400_wireless_lan_controller:*:*:*:*:*:*:*:*
cisco 5500_wireless_lan_controller — cpe:2.3:h:cisco:5500_wireless_lan_controller:-:*:*:*:*:*:*:*
cisco 7500_wireless_lan_controller — cpe:2.3:h:cisco:7500_wireless_lan_controller:-:*:*:*:*:*:*:*
cisco 8500_wireless_lan_controller — cpe:2.3:h:cisco:8500_wireless_lan_controller:-:*:*:*:*:*:*:*

References for CVE-2012-5991

cvelogic Threat Intelligence