What’s Vulnerable › Vulnerabilities

CVE-2022-20624: Cisco NX-OS Software Cisco Fabric Services Over IP Denial of Service Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-23 · updated 2026-06-17
• Weakness: CWE-400

Description

A vulnerability in the Cisco Fabric Services over IP (CFSoIP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of incoming CFSoIP packets. An attacker could exploit this vulnerability by sending crafted CFSoIP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Affected products

• Cisco NX-OS: 7.0(3), 9.2(2), 9.2(3), 9.3(3), 9.3(5), 4.1(1a)a

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cfsoip-dos-tpykyDr
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cfsoip-dos-tpykyDr

Get alerted when CVE-2022-20624 or the next vulnerability affects your stack