CVE-2022-20697

HIGH

Cisco IOS and IOS XE - Authenticated Denial of Service via HTTP Request Flood

Title source: llm
STIX 2.1

Description

A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

References (1)

Core 1
Core References

Scores

CVSS v3 8.6
EPSS 0.0108
EPSS Percentile 60.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-772 CWE-691
Status published
Products (29)
cisco/ios 15.1\(3\)svr1
cisco/ios 15.1\(3\)svr2
cisco/ios 15.1\(3\)svr3
cisco/ios 15.1\(3\)svs
cisco/ios 15.1\(3\)svs1
cisco/ios 15.1\(3\)svt1
cisco/ios 15.1\(3\)svt2
cisco/ios 15.1\(3\)svt3
cisco/ios 15.1\(3\)svu1
cisco/ios 15.1\(3\)svu2
... and 19 more
Published Apr 15, 2022
Tracked Since Feb 18, 2026