#VU116112 Data Handling in Cisco Systems, Inc products - CVE-2025-20311

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Main Vulnerability Database Vulnerabilities #VU116112

#VU116112 Data Handling in Cisco Systems, Inc products - CVE-2025-20311

Published: September 25, 2025


Vulnerability identifier: #VU116112
Vulnerability risk: Medium
CVSSv4.0: 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
CVE-ID: CVE-2025-20311
CWE-ID: CWE-19
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XE
Catalyst 9200 Series Switches
Catalyst 9300 Series Switches
Catalyst 9400 Series Switches
Catalyst 9500 Series Switches
Catalyst 9600 Series Switches
Software vendor:
Cisco Systems, Inc

Description

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

The vulnerability exists due to improper handling of crafted Ethernet frames. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links