SB20250227200 - Denial of service in Cisco Nexus 3000 and 9000 Series Switches
Published: February 27, 2025
Security Bulletin ID
SB20250227200
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2025-20111)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
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.