CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.0. It may be remotely exploitable.
CVE
CVE-2005-4440
Severity
MEDIUM
CVSS
5
EPSS
1.61%
Original NVD Description
The 802.1q VLAN protocol allows remote attackers to bypass network segmentation and spoof VLAN traffic via a message with two 802.1q tags, which causes the second tag to be redirected from a downstream switch after the first tag has been stripped, as demonstrated by Yersinia, aka "double-tagging VLAN jumping attack."