What’s Vulnerable › Vulnerabilities

CVE-2019-1644: Cisco IoT Field Network Director Resource Exhaustion Denial of Service Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-23 · updated 2026-06-17
• Weakness: CWE-400

Description

A vulnerability in the UDP protocol implementation for Cisco IoT Field Network Director (IoT-FND) could allow an unauthenticated, remote attacker to exhaust system resources, resulting in a denial of service (DoS) condition. The vulnerability is due to improper resource management for UDP ingress packets. An attacker could exploit this vulnerability by sending a high rate of UDP packets to an affected system within a short period of time. A successful exploit could allow the attacker to exhaust available system resources, resulting in a DoS condition.

Affected products

• Cisco IoT Field Network Director (IoT-FND): 4.3(0.20)

References

• http://www.securityfocus.com/bid/106709
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-iot-fnd-dos
• http://www.securityfocus.com/bid/106709
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-iot-fnd-dos

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