CVE-2022-20697

Name: CVE-2022-20697
Creator: NVD / NIST
Published: 2022-04-15T15:15:12.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2022-20697 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
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
Cisco	Ios	15.1\(3\)svu10
Cisco	Ios	15.1\(3\)svv1
Cisco	Ios	15.2\(7\)e3
Cisco	Ios	15.2\(7\)e3a
Cisco	Ios	15.2\(7\)e3k
Cisco	Ios	15.2\(7\)e4
Cisco	Ios	15.2\(8\)e
Cisco	Ios	15.2\(234k\)e
Cisco	Ios	15.3\(3\)jk100
Cisco	Ios	15.3\(3\)jpj8
Cisco	Ios	15.9\(3\)m2
Cisco	Ios	15.9\(3\)m2a
Cisco	Ios	15.9\(3\)m3
Cisco	Ios	15.9\(3\)m3a
Cisco	Ios	15.9\(3\)m3b
Cisco	Ios	15.9\(3\)m4
Cisco	Ios Xe	3.11.3ae
Cisco	Ios Xe	3.11.3e
Cisco	Ios Xe	3.11.4e

References

Timeline

Published: Apr 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-20697?

How severe is CVE-2022-20697?

CVE-2022-20697 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2022-20697?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-20697?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST