CVE-2006-4776

Published: Sep 14, 2006Modified: Apr 16, 2026

7.5

Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability: 10.0 / Impact: 6.4

Source: NVD

Description

Heap-based buffer overflow in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to execute arbitrary code via a long VLAN name in a VTP type 2 summary advertisement.

Affected (1)

Products: Cisco: Ios

Cisco

1 product

Ios

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios	Version 12.1(19)

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (24)

http://secunia.com/advisories/21896

Source: cve@mitre.org

Vendor Advisory

http://securitytracker.com/id?1016843

Source: cve@mitre.org

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

Source: cve@mitre.org

Patch

http://www.kb.cert.org/vuls/id/542108

Source: cve@mitre.org

US Government Resource

http://www.osvdb.org/28777

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

Vendor Advisory

http://www.vupen.com/english/advisories/2006/3601

Source: cve@mitre.org

Vendor Advisory

https://exchange.xforce.ibmcloud.com/vulnerabilities/28927

Source: cve@mitre.org

http://secunia.com/advisories/21896