Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2022-20678

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.

  • Published: Apr 15, 2022
  • Updated: Apr 14, 2023
  • CVE: CVE-2022-20678
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software From Fixed in
cisco / ios_xe 16.9.6 16.9.6.x
cisco / ios_xe 16.12.4 16.12.4.x
cisco / ios_xe 16.12.5 16.12.5.x
cisco / ios_xe 17.3.3 17.3.3.x