CVE-2025-20111

HIGH

Cisco Nexus 3000/9000 - DoS

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.4
EPSS 0.0010
EPSS Percentile 26.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1220
Status published
Products (50)
Cisco/Cisco NX-OS Software 10.1(1)
Cisco/Cisco NX-OS Software 10.1(2)
Cisco/Cisco NX-OS Software 10.1(2t)
Cisco/Cisco NX-OS Software 10.2(1)
Cisco/Cisco NX-OS Software 10.2(1q)
Cisco/Cisco NX-OS Software 10.2(2)
Cisco/Cisco NX-OS Software 10.2(2a)
Cisco/Cisco NX-OS Software 10.2(3)
Cisco/Cisco NX-OS Software 10.2(3t)
Cisco/Cisco NX-OS Software 10.2(3v)
... and 40 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026