CVE-2009-2976: Cisco Aironet AP1100
High severity, CVSS 7.8. EPSS: 1.4% chance of exploitation in the next 30 days.
Cisco Aironet Lightweight Access Point (AP) devices send the contents of certain multicast data frames in cleartext, which allows remote attackers to discover Wireless LAN Controller MAC addresses and IP addresses, and AP configuration details, by sniffing the wireless network.
Affected products
Published 2009-08-27. Last modified 2026-06-16.