Vulnerability in Cisco Catalyst_3650-12x48fd-e
CVE-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.
EPSS: 0.007 (47.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- cret@cert.org (Technical Description, Third Party Advisory)
- cret@cert.org (Vendor Advisory)
- cret@cert.org (Vendor Advisory)
- cret@cert.org (vendor-advisory, Third Party Advisory)
- cret@cert.org (US Government Resource, Third Party Advisory)
- cret@cert.org (Exploit, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-27853?
- CVE-2021-27853 is a medium-severity vulnerability in Cisco Catalyst_3650-12x48fd-e, classified under Authentication Bypass by Spoofing. CVSS score: 4.7/10. Published 2022-09-27.
- How severe is CVE-2021-27853?
- Medium severity. CVSS v3 base score is 4.7 out of 10.