7.4 High
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.01 Low
EPSS
Percentile
83.1%
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 βdouble-tagging VLAN jumping attack.β
CPE | Name | Operator | Version |
---|---|---|---|
vlan_protocol:vlan_protocol | vlan protocol | eq | 802.1q |