CVE-2022-20920 Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability

2022-10-1020:43:15

CWE-755

cisco

www.cve.org

cisco

ssh

denial of service

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

0.001

Percentile

44.3%

JSON

A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to improper handling of resources during an exceptional situation. An attacker could exploit this vulnerability by continuously connecting to an affected device and sending specific SSH requests. A successful exploit could allow the attacker to cause the affected device to reload.

CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco IOS",
    "versions": [
      {
        "version": "n/a",
        "status": "affected"
      }
    ]
  }
]