Vulnerability in Cisco Nx-os Software
CVE-2022-20623
A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an…
EPSS: 0.131 (94.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Nx-os Software — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 20220223 Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability (vendor-advisory, x_refsource_CISCO)
Frequently asked questions
- What is CVE-2022-20623?
- CVE-2022-20623 is a high-severity vulnerability in Cisco Nx-os Software, classified under CWE-399. CVSS score: 8.6/10. Published 2022-02-23.
- How severe is CVE-2022-20623?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2022-20623 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.