Vulnerability Details : CVE-2005-4440
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."
Exploit prediction scoring system (EPSS) score for CVE-2005-4440
Probability of exploitation activity in the next 30 days: 0.96%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 83 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2005-4440
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST |
References for CVE-2005-4440
Products affected by CVE-2005-4440
- cpe:2.3:a:vlan_protocol:vlan_protocol:802.1q:*:*:*:*:*:*:*