#VU110219 Key Exchange without Entity Authentication in Cisco Nexus Dashboard Fabric Controller (NDFC) - CVE-2025-20163

Vulnerability identifier: #VU110219

Vulnerability risk: High

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-20163

CWE-ID: CWE-322

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Nexus Dashboard Fabric Controller (NDFC)
Hardware solutions / Firmware

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient SSH host key validation. A remote attacker can perform machine-in-the-middle (MitM) attack to impersonate a managed device and capture user credentials.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Nexus Dashboard Fabric Controller (NDFC): 3.1 - 3.2

---

External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndfc-shkv-snQJtjrp

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.