CVE-2006-4982: n/a vulnerability

CVE-2006-4982: Cisco NAC maintains an exception list that does not record device properties other than MAC address, which...

Cisco NAC maintains an exception list that does not record device properties other than MAC address, which allows physically proximate attackers to bypass control methods and join a local network by spoofing the MAC address of a different type of device, as demonstrated by using the MAC address of a disconnected printer.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 19:32 UTC (UTC+00:00)

Security readout for executives and security teams

This issue describes a Cisco NAC bypass where an exception list trusts only a MAC address. A nearby attacker could gain local network access by presenting a MAC address already allowed for another device type, such as a printer. The sources do not provide affected versions, CVSS, or a vendor patch. Exposure is most likely in legacy Cisco NAC deployments using MAC-address exception lists for non-user devices. The source bundle does not identify exact affected versions or configurations. Treat this as a legacy control weakness, not a confirmed internet-scale emergency. Prioritize review if NAC exceptions protect sensitive network segments or include unmanaged device classes. Mitigation focus: Check Cisco NAC vendor guidance or successor-product documentation for supported remediation.; Review and minimize exception-list entries that rely only on MAC address.; Remove stale exceptions for disconnected, retired, or unmanaged devices..

Prepared: Jun 29, 2026, 10:19 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 26, 2006, 01:43 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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