CVE-2021-27862
4.7 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
4.9 Medium
AI Score
Confidence
High
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
31.5%
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion (and optionally VLAN0 headers).
| CPE | Name | Operator | Version |
|---|---|---|---|
| ieee:ieee_802.2 | ieee ieee 802.2 | le | 802.2h-1997 |
| ietf:p802.1q | ietf p802.1q | le | d1.0 |
References
Social References
More
Related
4.7 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
4.9 Medium
AI Score
Confidence
High
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
31.5%