CVE-2013-1226

Name of the Vulnerable Software and Affected Versions Cisco NX-OS versions on Nexus 7000 devices (affected versions not specified)

Description The issue is related to the mishandling of nonstandard Ethernet frames by the Cisco NX-OS software, which can be exploited by an unauthenticated, remote attacker with access to an adjacent network. The attacker can send a crafted nonstandard Ethernet frame to the targeted device, causing a frame forwarding loop and resulting in a denial of service condition.

Recommendations To resolve the issue, update the Cisco NX-OS software to a version that includes the fix for this vulnerability. As a temporary workaround, consider restricting access to the adjacent network to minimize the risk of exploitation. Avoid using nonstandard Ethernet frames in the affected software until the issue is resolved.