CVE Catalog

CVE-2015-6393

High
Published: Translated: NVD NIST

Summary

A vulnerability in Cisco NX-OS from versions 4.1 to 7.3 and from 11.0 to 11.2 on Nexus 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a device crash by sending malformed IPv4 DHCP packets to the DHCPv4 relay agent.

Risk Assessment

Attackers can exploit this vulnerability to remotely trigger a device crash, potentially leading to service outages within the organization.

Recommendation

It is recommended to update the NX-OS software to the latest version to mitigate this vulnerability and to monitor DHCP traffic for potential attacks.

Related vulnerabilities

Original NVD description (English source)

Cisco NX-OS 4.1 through 7.3 and 11.0 through 11.2 on Nexus 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a denial of service (device crash) via malformed IPv4 DHCP packets to the DHCPv4 relay agent, aka Bug IDs CSCuq39250, CSCus21733, CSCus21739, CSCut76171, and CSCux67182.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS