CVE-2006-4775
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 5.05% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/ios · cisco/catos
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/21896Vendor Advisory
- http://secunia.com/advisories/21902Vendor Advisory
- http://securitytracker.com/id?1016843
- http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtmlPatch
- http://www.kb.cert.org/vuls/id/175148US Government Resource
- http://www.osvdb.org/28776
- http://www.phenoelit.de/stuff/CiscoVTP.txt
- http://www.securityfocus.com/archive/1/445896/100/0/threaded
- http://www.securityfocus.com/archive/1/445938/100/0/threaded
- http://www.securityfocus.com/bid/19998
- http://www.vupen.com/english/advisories/2006/3600Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28925
- http://secunia.com/advisories/21896Vendor Advisory
- http://secunia.com/advisories/21902Vendor Advisory
- http://securitytracker.com/id?1016843
- http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtmlPatch
- http://www.kb.cert.org/vuls/id/175148US Government Resource
- http://www.osvdb.org/28776
- http://www.phenoelit.de/stuff/CiscoVTP.txt
- http://www.securityfocus.com/archive/1/445896/100/0/threaded
- http://www.securityfocus.com/archive/1/445938/100/0/threaded
- http://www.securityfocus.com/bid/19998
- http://www.vupen.com/english/advisories/2006/3600Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28925
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.