VULNERABILITY INTELLIGENCE
CVE-2006-4775
CVSS score7.8 HIGH
EPSS probability5.14%
CISA KEVNot currently listed
Published2006-09-14
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Description
The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote attackers to cause a denial of service by sending a VTP update with a revision value of 0x7FFFFFFF, which is incremented to 0x80000000 and is interpreted as a negative number in a signed context.
Primary references
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Vendor Advisory
- cve@mitre.org
- cve@mitre.org — Patch
- cve@mitre.org — US Government Resource
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Vendor Advisory
- cve@mitre.org