{"cve":"CVE-2006-4983","nvd":{"published":"2006-09-26T02:07:00.000","modified":"2026-06-16T22:30:15.153","status":"Modified","description":"Cisco NAC allows quarantined devices to communicate over the network with (1) DNS, (2) DHCP, and (3) EAPoUDP, which allows attackers to bypass control methods by tunneling network traffic through one of these protocols.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.insightix.com/files/pdf/Bypassing_NAC_Solutions_Whitepaper.pdf","http://www.osvdb.org/30977","http://www.securityfocus.com/archive/1/446421/100/0/threaded","http://www.insightix.com/files/pdf/Bypassing_NAC_Solutions_Whitepaper.pdf","http://www.osvdb.org/30977"],"products":["cisco:network_access_control"],"source":"nvd","synced_at":"2026-10-19T19:43:14.363260067+00:00"},"epss":{"cve":"CVE-2006-4983","score":0.01365,"percentile":0.71823,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}