CVE-2020-3465 HIGH

CVE-2020-3465: Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability

Vendor Cisco
Product Cisco IOS XE Software 16.8.1
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:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a device to reload. The vulnerability is due to incorrect handling of certain valid, but not typical, Ethernet frames. An attacker could exploit this vulnerability by sending the Ethernet frames onto the Ethernet segment. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Key dates

02Disclosure timeline

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