CVE-2012-0369: Cisco Wireless LAN Controller (WLC) devices with software 6.0 and 7.0 before 7.0.220.0, 7.1 before 7.1.91.0...

Security readout for executives and security teams

This vulnerability can let a remote attacker crash and reload affected Cisco Wireless LAN Controllers using IPv6 packet sequences. The business impact is wireless service interruption, not data theft based on the provided sources. Organizations still running the affected legacy WLC software should treat this as an availability risk. Exposure is most likely where legacy Cisco WLC devices remain in service on the affected software trains and can receive IPv6 traffic from untrusted or broad network segments. Environments without Cisco WLC, without affected versions, or with no IPv6 reachability to the controller are less likely exposed. Prioritize remediation for business-critical wireless environments, especially campuses, warehouses, hospitals, or offices dependent on Cisco WLC-managed access. This is an availability issue: a successful attack can disrupt wireless operations by forcing device reloads. Legacy systems should be upgraded or isolated promptly. Mitigation focus: Inventory Cisco WLC devices and record exact software train and version.; Upgrade affected 7.0 systems to 7.0.220.0 or later.; Upgrade affected 7.1 systems to 7.1.91.0 or later..

Prepared

Jun 24, 2026, 12:52 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.