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Cisco XE: CVE-2022-20678: Cisco IOS XE Software AppNav-XE Denial of Service Vulnerability

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Cisco XE: CVE-2022-20678: Cisco IOS XE Software AppNav-XE Denial of Service Vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
04/15/2022
Created
08/29/2022
Added
08/19/2022
Modified
08/19/2022

Description

A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.

Solution(s)

  • cisco-xe-upgrade-latest

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