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CVE-2021-27853

PoC —
CVSS 3.1
4.7 medium
EPSS
<1%p53
Published
()
Modified
Description

Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.

Vendors
ieeeietfcisco
Products
ieee 802.2, p802.1q, catalyst 6503-e firmware, catalyst 6504-e firmware, catalyst 6506-e firmware, catalyst 6509-e firmware, catalyst 6509-neb-a firmware, catalyst 6509-v-e firmware, catalyst 6513-e firmware, catalyst 6807-xl firmware, catalyst 6840-x firmware, catalyst 6880-x firmware
Weakness
CWE-290
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (0.8%)

In the news

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