CVE-2008-4963

HighCVSS 7.1/10Last modified Jun 16, 2026

Description

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.

Metrics

CVSS 2.0 7.1/10AV:N/AC:M/Au:N/C:N/I:N/A:C

Affected software

No affected versions have been published.

Timeline

Published
Nov 6, 2008
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2008-4963: High severity, CVSS 7.1 | Vulnix