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redhatcveRedhat.comRH:CVE-2021-27861
HistoryOct 02, 2022 - 4:19 p.m.

CVE-2021-27861

2022-10-0216:19:02
redhat.com
access.redhat.com
84

0.001 Low

EPSS

Percentile

38.7%

JSON

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length (and optionally VLAN0 headers)

Related

cve 1
prion 1
cvelist 1
arista 1
cisco 1
f5 1
cert 1
cve
cve
CVE-2021-27861
2022-09-27 19:15:00
prion
prion
Code injection
2022-09-27 19:15:00
cvelist
cvelist
L2 network filtering bypass using stacked VLAN0 and LLC/SNAP headers with invalid lengths
2022-09-27 00:00:00
arista
arista
Security Advisory 0080
2023-09-28 00:00:00
cisco
cisco
Vulnerabilities in Layer 2 Network Security Controls Affecting Cisco Products: September 2022
2022-09-27 16:00:00
f5
f5
K45012151 : Layer 2 security bypass issue CVE-2021-27861, CVE-2021-27862, CVE-2021-27853, CVE-2021-27854
2022-12-09 00:00:00
cert
cert
L2 network security controls can be bypassed using VLAN 0 stacking and/or 802.3 headers
2022-09-27 00:00:00

0.001 Low

EPSS

Percentile

38.7%

JSON
Related for RH:CVE-2021-27861
cve1prion1cvelist1arista1cisco1f51cert1