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CVE-2009-2976

Cisco Aironet Lightweight Access Point (AP) devices send the contents of certain multicast data...

7.8 High

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.

Exploit likelihood

1.41%Up 0.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

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.

Record
CVE-2009-2976
CVSS 2.0
7.8 HighAV:N/AC:L/Au:N/C:C/I:N/A:N
Weakness
CWE-310
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2009-2976
Updated
2026-11-02
EUVDEUVD-2009-2961 No score

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.

Record
EUVD-2009-2961
Updated
2026-11-03
GitHub AdvisoriesGHSA-v58x-whgv-c2w3 No score

Cisco Aironet Lightweight Access Point (AP) devices send the contents of certain multicast data...

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.

Record
GHSA-v58x-whgv-c2w3
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-2976 is a high vulnerability (CVSS 7.8) in Cisco Aironet Ap1100, published August 27, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.41%, the 72nd percentile. No source names a fixed version.

References

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