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Last updated: 5/24/2016 1:39:37 AM

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Vulnerability Summary for CVE-2006-4774

Original release date: 09/13/2006
Last revised: 03/07/2011


The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to cause a denial of service by sending a VTP version 1 summary frame with a VTP version field value of 2.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.8 HIGH
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: CISCO
Name: 20060913 Cisco VLAN Trunking Protocol Vulnerabilities
Type: Patch Information
External Source: MISC
Name: http://www.phenoelit.de/stuff/CiscoVTP.txt
External Source: SECTRACK
Name: 1016843
External Source: BID
Name: 19998
External Source: VUPEN
Name: ADV-2006-3600
Type: Advisory
US-CERT Vulnerability Note: CERT-VN
Name: VU#821420
External Source: BUGTRAQ
Name: 20060913 Cisco IOS VTP issues
Type: Advisory
External Source: OSVDB
Name: 28775
External Source: XF
Name: cisco-ios-vtp-version-dos(28924)
External Source: BUGTRAQ
Name: 20060913 Re: Cisco IOS VTP issues

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Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)