SB20250227200 - Denial of service in Cisco Nexus 3000 and 9000 Series Switches



SB20250227200 - Denial of service in Cisco Nexus 3000 and 9000 Series Switches

Published: February 27, 2025

Security Bulletin ID SB20250227200
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Input validation error (CVE-ID: CVE-2025-20111)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the incorrect handling of specific Ethernet frames in the health monitoring diagnostics. A remote attacker on the local network can send a sustained rate of crafted Ethernet frames and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.