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prionPRIOn knowledge basePRION:CVE-2021-27862
HistorySep 27, 2022 - 7:15 p.m.

Design/Logic Flaw

2022-09-2719:15:00
PRIOn knowledge base
www.prio-n.com
12
ipv6 ra guard
llc/snap headers
ethernet to wifi
vlan0
nvd

4.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.3%

JSON

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).

CPENameOperatorVersion
ieee_802.2eq<= 802.2h-1997
p802.1qeq<= d1.0

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L2 network security controls can be bypassed using VLAN 0 stacking and/or 802.3 headers
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4.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.3%

JSON
Related for PRION:CVE-2021-27862
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