VulnerabilityModified

CVE-2009-0059

HIGH 7.8EPSS 1.93%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The Cisco Wireless LAN Controller (WLC), Cisco Catalyst 6500 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.2.x before 5.2.157.0 allow remote attackers to cause a denial of service (device reload) via a web authentication (aka WebAuth) session that includes a malformed POST request to login.html.

CVSS 2.0: 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS: 1.93% probability · 80th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-20
Affected: cisco/4400 wireless lan controller · cisco/catalyst 3750 series integrated wireless lan controller · cisco/catalyst 6500 series integrated wireless lan controller · cisco/catalyst 7600 series wireless lan controller · cisco/wireless lan controller software
Source: psirt@cisco.com

EPSS trend

EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.