CVE-2006-4774
The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to cause a...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2006-4774- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2006-4774- Updated
- 2026-11-02
EUVDEUVD-2006-4761 No score
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.
- Record
EUVD-2006-4761- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qw2r-x5rp-6wm2 No score
The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to cause a...
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.
- Record
GHSA-qw2r-x5rp-6wm2- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-4774 is a high vulnerability (CVSS 7.8) in Cisco Ios, published September 14, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.14%, the 92nd percentile. No source names a fixed version.
References
phenoelit.de/stuff/CiscoVTP.txt
osvdb.org/28775
secunia.com/advisories/21896
securityfocus.com/bid/19998
cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtml
securitytracker.com/id?1016843