CVE-2020-3409 HIGH

CVE-2020-3409: Cisco IOS and IOS XE Software PROFINET Denial of Service Vulnerability

Vendor Cisco
Product Cisco IOS
Weakness CWE-20 · Input validation
Published September 24, 2020
Last update November 13, 2024

CVSS base score

7.4/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in the PROFINET feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to crash and reload, resulting in a denial of service (DoS) condition on the device. The vulnerability is due to insufficient processing logic for crafted PROFINET packets that are sent to an affected device. An attacker could exploit this vulnerability by sending crafted PROFINET packets to an affected device for processing. A successful exploit could allow the attacker to cause the device to crash and reload, resulting in a DoS condition on the device.

Key dates

02Disclosure timeline

September 24, 2020 CVE published
November 13, 2024 Record updated