Description
The Versa Director SD-WAN orchestration platform which makes use of Cisco NCS application service. Active and Standby Directors communicate over TCP ports 4566 and 4570 to exchange High Availability (HA) information using a shared password. Affected versions of Versa Director bound to these ports on all interfaces. An attacker that can access the Versa Director could access the NCS service on port 4566 and exploit it to perform unauthorized administrative actions and perform remote code execution. Customers are recommended to follow the hardening guide.
Versa Networks is not aware of any reported instance where this vulnerability was exploited. Proof of concept for this vulnerability has been disclosed by third party security researchers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Versa | Director | 21.2.2 – ≤ 21.2.2, 21.2.3 – ≤ 21.2.3, 22.1.1 – ≤ 22.1.1, 22.1.2 – ≤ 22.1.2, 22.1.3 – ≤ 22.1.3, 22.1.4 – ≤ 22.1.4 | — |
Advisories 1
- VA-25-169-01 Versa Networks Versa Director multiple vulnerabilities CISA ICS & IT advisories · Jul 2, 2025
References
- https://security-portal.versa-networks.com/emailbulletins/68526c3cdc94d6b9f2faf718
- https://support.versa-networks.com/support/solutions/articles/23000026724-versa-director-ha-port-exploit-discovery-remediation
- https://support.versa-networks.com/support/solutions/articles/23000026708-release-22-1-4
- https://support.versa-networks.com/support/solutions/articles/23000026033-release-22-1-3
- https://support.versa-networks.com/support/solutions/articles/23000025680-release-22-1-2
- https://support.versa-networks.com/support/solutions/articles/23000024323-release-21-2-3
- https://docs.versa-networks.com/Solutions/System_Hardening/Perform_Manual_Hardening_for_Versa_Director#Harden_Port_4566