CVE-2020-3372: Cisco SD-WAN vManage Software Denial of Service Vulnerability

Published Jul 16, 2020
·
Updated

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to consume excessive system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a large number of crafted HTTP requests to the affected web-based management interface. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and could result in a DoS condition.

Affected Software

13 affected components
cisco Sd-wan Firmware<19.2.3
cisco Sd-wan Firmware>=20.1.0<20.1.12
cisco 1100-4g Integrated Services Router
cisco 1100-4gltegb Integrated Services Router
cisco 1100-4gltena Integrated Services Router
cisco 1100-6g Integrated Services Router
cisco Vedge 100
cisco Vedge 1000
cisco Vedge 100b
cisco Vedge 100m
cisco Vedge 100wm
cisco Vedge 2000
cisco Vedge 5000

Event History

Jul 16, 2020
CVE Published
via MITRE·05:21 PM
Data Sourced
via MITRE·05:21 PM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2020-3372?

CVE-2020-3372 is a vulnerability in the web-based management interface of Cisco SD-WAN vManage Software that could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.

2

How does CVE-2020-3372 affect Cisco SD-WAN vManage Software?

CVE-2020-3372 affects the web-based management interface of Cisco SD-WAN vManage Software and can be exploited by an authenticated, remote attacker to consume excessive system memory and cause a DoS condition.

3

What is the severity of CVE-2020-3372?

CVE-2020-3372 has a severity rating of 6.5 (Medium).

4

How can I fix CVE-2020-3372?

To fix CVE-2020-3372, Cisco recommends upgrading to a fixed software release.

5

Where can I find more information about CVE-2020-3372?

More information about CVE-2020-3372 can be found on the Cisco Security Advisory at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-emvman-3y6LuTcZ.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203