CVE-2006-4776 describes a heap-based buffer overflow vulnerability in the VLAN Trunking Protocol (VTP) feature of Cisco IOS 12.1(19). This flaw allows unauthenticated remote attackers to execute arbitrary code by sending a crafted VTP type 2 summary advertisement containing an excessively long VLAN name. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector and potential for complete compromise of confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
12.1\(19\)CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(19\):*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.