CVE-2006-4430
The Cisco Network Admission Control (NAC) 3.6.4.1 and earlier allows remote attackers to prevent installation of the Cisco Clean Access (CCA) Agent and bypass local and remote protection mechanisms by modifying (1) the HTTP User-Agent header or (2) the behavior of the TCP/IP stack. NOTE: the vendor has disputed the severity of this issue, stating that users cannot bypass authentication mechanisms.
Published:Aug 29, 2006
Last Modified:Apr 16, 2026
EPS:Aug 29, 2006
EPSS Score:0.0236
CVSS Score:5
Affected Products
Vendor
Product
Action
Vendor
Cisco
Product
Network Admission Control
Cisco
Network Admission Control
Vendor
Cisco
Product
Network Admission Control Manager And Server System Software
Cisco
Network Admission Control Manager And Server System Software
Exploits
No exploit reference
Common Weakness Enumeration
No CWE recorded yet
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
