CVE-2021-27853
published 2022-09-27CVE-2021-27853: 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.
medium4.7CVSS 3.1
AVAACLPRNUINSCCNILAN
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.
Affected
94 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | catalyst_6503-e_firmware | — | — |
| cisco | catalyst_6504-e_firmware | — | — |
| cisco | catalyst_6506-e_firmware | — | — |
| cisco | catalyst_6509-e_firmware | — | — |
| cisco | catalyst_6509-neb-a_firmware | — | — |
| cisco | catalyst_6509-v-e_firmware | — | — |
| cisco | catalyst_6513-e_firmware | — | — |
| cisco | catalyst_6800ia_firmware | — | — |
| cisco | catalyst_6807-xl_firmware | — | — |
| cisco | catalyst_6840-x_firmware | — | — |
| cisco | catalyst_6880-x_firmware | — | — |
| cisco | catalyst_c6816-x-le_firmware | — | — |
| cisco | catalyst_c6824-x-le-40g_firmware | — | — |
| cisco | catalyst_c6832-x-le_firmware | — | — |
| cisco | catalyst_c6840-x-le-40g_firmware | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | n9k-c9316d-gx_firmware | — | — |
| cisco | n9k-c9332d-gx2b_firmware | — | — |
| cisco | n9k-c9348d-gx2a_firmware | — | — |
| cisco | n9k-c93600cd-gx_firmware | — | — |
| cisco | n9k-c9364d-gx2a_firmware | — | — |