CVE-2006-4776

HighCVSS 7.5/10Last modified Jun 16, 2026

Description

Heap-based buffer overflow in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to execute arbitrary code via a long VLAN name in a VTP type 2 summary advertisement.

Metrics

CVSS 2.0 7.5/10AV:N/AC:L/Au:N/C:P/I:P/A:P

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
Sep 14, 2006
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2006-4776: High severity, CVSS 7.5 | Vulnix