CVE-2022-20920

HIGH

Cisco Ios - Improper Exception Handling

Title source: rule

Description

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.

Scores

CVSS v3 7.7
EPSS 0.0102
EPSS Percentile 77.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Classification

CWE
CWE-755
Status published

Affected Products (50)

cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
cisco/ios
... and 35 more

Timeline

Published Oct 10, 2022
Tracked Since Feb 18, 2026