CVE-2006-4430

medium Cisco
CVSS v3 Base Score
5.0
AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS Score
2.4%
Exploitation probability in 30 days
Top 15% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
P
Availability
None
Published: August 29, 2006 (7198 days ago)
Last Modified: April 16, 2026
Vendor: Cisco
Source: NVD

Description

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.

CWE

NVD-CWE-Other

Affected Products

cisco network admission controlcisco network admission control manager and server system software

References

🔗 archive.cert.uni-stuttgart.de 🔗 www.cisco.com 🔗 www.cisco.com 🔗 www.securityfocus.com 🔗 www.securityfocus.com