CVE-2006-4774

high

Description

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.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/28924

http://www.vupen.com/english/advisories/2006/3600

http://www.securityfocus.com/bid/19998

http://www.securityfocus.com/archive/1/445938/100/0/threaded

http://www.securityfocus.com/archive/1/445896/100/0/threaded

http://www.phenoelit.de/stuff/CiscoVTP.txt

http://www.osvdb.org/28775

http://www.kb.cert.org/vuls/id/821420

http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtml

http://securitytracker.com/id?1016843

http://secunia.com/advisories/21896

Details

Source: Mitre, NVD

Published: 2006-09-14

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H