CVE-2022-20692

HIGH

Cisco IOS XE - Authenticated Denial of Service via NETCONF over SSH

Title source: llm
STIX 2.1

Description

A vulnerability in the NETCONF over SSH feature of Cisco IOS XE Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service condition (DoS) on an affected device. This vulnerability is due to insufficient resource management. An attacker could exploit this vulnerability by initiating a large number of NETCONF over SSH connections. A successful exploit could allow the attacker to exhaust resources, causing the device to reload and resulting in a DoS condition on an affected device.

References (1)

Core 1
Core References

Scores

CVSS v3 7.7
EPSS 0.0072
EPSS Percentile 72.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (50)
cisco/ios_xe 3.15.1xbs
cisco/ios_xe 3.15.2xbs
cisco/ios_xe 16.3.1
cisco/ios_xe 16.3.1a
cisco/ios_xe 16.3.2
cisco/ios_xe 16.3.3
cisco/ios_xe 16.3.4
cisco/ios_xe 16.3.5
cisco/ios_xe 16.3.5b
cisco/ios_xe 16.3.6
... and 40 more
Published Apr 15, 2022
Tracked Since Feb 18, 2026