CVE-2025-20163

CVE-2025-20163 is a high-severity vulnerability in Cisco Nexus Dashboard with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-322.

Key facts

Description

A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices. This vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.

Frequently asked questions

What is CVE-2025-20163?
A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices. This vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.
How severe is CVE-2025-20163?
CVE-2025-20163 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-20163 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20163?
CVE-2025-20163 affects Cisco Nexus Dashboard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-20163?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-20163 have an EU (EUVD) identifier?
Yes. CVE-2025-20163 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16891.
When was CVE-2025-20163 published?
CVE-2025-20163 was published on 2025-06-04 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Cisco Nexus Dashboard

All CVEs affecting Cisco Nexus Dashboard →

Other CWE-322 vulnerabilities

Browse all CWE-322 vulnerabilities →