CVE-2008-4963
HIGH · CVSS 7.1EPSS 1.7%EU EUVD
Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS and CatOS, when the VTP operating mode is not transparent, allows remote attackers to cause a denial of service (device reload or hang) via a crafted VTP packet sent to a switch interface configured as a trunk port.
Key facts
- CVSS score
- 7.1 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C- EPSS score
- 1.7% (77th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2008-4942)
- Published
- November 6, 2008
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2008-4942 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / catos
- cisco / ios
References
- http://osvdb.org/49601
- http://secunia.com/advisories/32573(Vendor Advisory)
- http://securitytracker.com/id?1021143
- http://www.cisco.com/en/US/products/products_security_response09186a0080a231cf.html(Vendor Advisory)
- http://www.securityfocus.com/bid/32120
- http://www.securitytracker.com/id?1021144
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46346
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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