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."
Max CVSS
5.0
EPSS Score
0.69%
Published
2005-12-21
Updated
2018-10-19
1 vulnerabilities found
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