VDB

CVE-2022-20678

CVE-2022-20678 PUBLISHED CVSS 8.600000381469727 HIGH

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.

EPSS 0.29% · 52.7th percentile

Risk Scores

CVSS 3.1
8.600000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score
0.29%
52.7th percentile

Affected Products

VendorProductVersions
ciscoios_xe16.12.4, 17.3.3, 16.9.6
CiscoCisco IOS XE Softwaren/a

Exploit Intelligence

Timeline

  • Apr 14, 2022 CVE Published
  • Apr 16, 2022 EPSS Score
  • Jun 5, 2022 EPSS Score
  • Jul 26, 2022 EPSS Score
  • Sep 14, 2022 EPSS Score
  • Nov 4, 2022 EPSS Score
  • Dec 24, 2022 EPSS Score
  • Feb 12, 2023 EPSS Score
  • Mar 7, 2023 EPSS Score
  • Apr 3, 2023 EPSS Score
  • May 23, 2023 EPSS Score
  • Jul 12, 2023 EPSS Score

References

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