What is the severity of CVE-2017-3864?

CVE-2017-3864 is rated as a high severity vulnerability due to its potential to cause a denial of service.

How do I fix CVE-2017-3864?

To mitigate CVE-2017-3864, upgrade to a fixed software version of Cisco IOS or IOS XE.

Which Cisco products are affected by CVE-2017-3864?

CVE-2017-3864 affects Cisco IOS versions 12.2, 12.4, and 15.0 through 15.6, as well as Cisco IOS XE versions 3.3 through 3.7.

What type of attack can be executed using CVE-2017-3864?

CVE-2017-3864 can be exploited by an unauthenticated remote attacker leading to a denial of service condition.

When was CVE-2017-3864 publicly disclosed?

CVE-2017-3864 was publicly disclosed on March 22, 2017.

Vulnerability/
CVE-2017-3864

high

8.6

CWE

399

22/3/2017

4/9/2020

CVE-2017-3864

First published: Wed Mar 22 2017(Updated: )

A vulnerability in the DHCP client implementation of Cisco IOS (12.2, 12.4, and 15.0 through 15.6) and Cisco IOS XE (3.3 through 3.7) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and using a specific DHCP client configuration. Cisco Bug IDs: CSCuu43892.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS	>=15.0<=15.6
Cisco IOS	=12.2
Cisco IOS	=12.4
Cisco IOS XE Web UI	>=3.3<=3.7

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2017-3864?
CVE-2017-3864 is rated as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2017-3864?
To mitigate CVE-2017-3864, upgrade to a fixed software version of Cisco IOS or IOS XE.
Which Cisco products are affected by CVE-2017-3864?
CVE-2017-3864 affects Cisco IOS versions 12.2, 12.4, and 15.0 through 15.6, as well as Cisco IOS XE versions 3.3 through 3.7.
What type of attack can be executed using CVE-2017-3864?
CVE-2017-3864 can be exploited by an unauthenticated remote attacker leading to a denial of service condition.
When was CVE-2017-3864 publicly disclosed?
CVE-2017-3864 was publicly disclosed on March 22, 2017.

agent/type
agent/first-publish-date
agent/softwarecombine
agent/last-modified-date
agent/tags
agent/event
agent/references
agent/weakness
agent/severity
agent/author
agent/description
collector/nvd-index
agent/software-canonical-lookup-request
vendor/cisco
canonical/cisco ios
version/cisco ios/15.0
version/cisco ios/15.6
version/cisco ios/12.2
version/cisco ios/12.4
canonical/cisco ios xe web ui
version/cisco ios xe web ui/3.3
version/cisco ios xe web ui/3.7

Company

Resources

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.