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Cisco Bug: CSCvs77733 - Cisco Prime Network Registrar DHCP Denial of Service Vulnerability

Last Modified

Sep 08, 2020

Products (1)

  • Cisco Network Registrar

Known Affected Releases

10.1 8.3(7) 9.1(2)

Description (partial)

A vulnerability in the DHCP server of Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

The vulnerability is due to insufficient input validation of incoming DHCP traffic. An attacker could exploit this vulnerability by sending a crafted DHCP request to an affected device. A successful exploit could allow the attacker to cause a restart of the DHCP server process, causing a DoS condition.

Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

This advisory is available at the following link:

Please refer to the Security Advisory.
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