CVE-2020-3567: Cisco Industrial Network Director Denial of Service Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-08 · updated 2026-06-17
Weakness: CWE-20

Description

A vulnerability in the management REST API of Cisco Industrial Network Director (IND) could allow an authenticated, remote attacker to cause the CPU utilization to increase to 100 percent, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of requests sent to the REST API. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to cause a permanent DoS condition that is due to high CPU utilization. Manual intervention may be required to recover the Cisco IND.

Affected products

Cisco Industrial Network Director: before 1.9.0 — fixed in 1.9.0
Cisco Network Level Service: 1.8(0.142), 1.9(0.63)

How to fix

Upgrade to a fixed version: Cisco Industrial Network Director 1.9.0. Check the vendor advisory for mitigations.

References

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