A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent malicious user to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the malicious user to populate the ARP table with incorrect entries, which could lead to traffic disruptions.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
cisco nx-os 8.1\\(1\\) |
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cisco nx-os 8.4\\(1\\) |
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cisco nx-os 9.3\\(1\\) |
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