Unrated severityNVD Advisory· Published Jul 29, 2009· Updated Jun 16, 2026

CVE-2009-1166

Description

The administrative web interface on the Cisco Wireless LAN Controller (WLC) platform 4.x before 4.2.205.0 and 5.x before 5.2.191.0, as used in Cisco 1500 Series, 2000 Series, 2100 Series, 4100 Series, 4200 Series, and 4400 Series Wireless Services Modules (WiSM), WLC Modules for Integrated Services Routers, and Catalyst 3750G Integrated Wireless LAN Controllers, allows remote attackers to cause a denial of service (device reload) via a crafted (1) HTTP or (2) HTTPS request, aka Bug ID CSCsy27708.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Catalyst
cpe:2.3:h:cisco:catalyst:3750g:*:*:*:*:*:*:*
Cisco Systems, Inc./Wireless Lan Controllersllm-fuzzy
Range: 4.x <4.2.205.0, 5.x <5.2.191.0

Patches

Vulnerability mechanics

References

www.cisco.com/en/US/products/products_security_advisory09186a0080adb3d7.shtmlnvdPatchVendor Advisory
www.securitytracker.com/idnvd
www.vupen.com/english/advisories/2009/2021nvd

News mentions

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