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OpenAdvisories
High · 7.4 CVE-2025-20111 EUVD-2025-5297GHSA-q737-5cw3-3g78

Cisco Nexus 3000 and 9000 Series Switches Layer 2 Ethernet Denial of Service Vulnerability

Published Feb 26, 2025 · Updated Feb 26, 2025 · Assigned by cisco

Description

A vulnerability in the health monitoring diagnostics of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.

This vulnerability is due to the incorrect handling of specific Ethernet frames. An attacker could exploit this vulnerability by sending a sustained rate of crafted Ethernet frames to an affected device. A successful exploit could allow the attacker to cause the device to reload.

Affected products

VendorProductAffectedFixed
Cisco Cisco NX-OS Software 9.3(2), 9.3(1), 9.3(1z), 9.3(3), 9.3(4), 9.3(5), 9.3(6), 10.1(2), 10.1(1), 9.3(5w), 9.3(7), 9.3(7k), 10.2(1), 9.3(7a), 9.3(8), 10.2(1q), 10.2(2), 9.3(9), 10.1(2t), 10.2(3), 10.2(3t), 9.3(10), 10.2(2a), 10.3(1), 10.2(4), 10.3(2), 9.3(11), 10.3(3), 10.2(5), 9.3(12), 10.2(3v), 10.4(1), 10.3(99w), 10.2… —

Advisories 1

References