CVE-2019-3586: McAfee Endpoint Security firewall not always acting on GTI lookup results

Published May 15, 2019
·
Updated

Protection Mechanism Failure in the Firewall in McAfee Endpoint Security (ENS) 10.x prior to 10.6.1 May 2019 update allows context-dependent attackers to circumvent ENS protection where GTI flagged IP addresses are not blocked by the ENS Firewall via specially crafted malicious sites where the GTI reputation is carefully manipulated and does not correctly trigger the ENS Firewall to block the connection.

Affected Software

2 affected components
McAfee Endpoint Security>=10.0.0<=10.6.1
McAfee Endpoint Security=10.6.1-201905

Event History

May 15, 2019
CVE Published
via MITRE·03:48 PM
Data Sourced
via MITRE·03:48 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 the severity of CVE-2019-3586?

The severity of CVE-2019-3586 is high with a severity value of 7.5.

2

What is the affected software for CVE-2019-3586?

The affected software for CVE-2019-3586 is McAfee Endpoint Security versions prior to 10.6.1.

3

How can context-dependent attackers exploit CVE-2019-3586?

Context-dependent attackers can exploit CVE-2019-3586 by circumventing ENS protection where GTI flagged IP addresses are not blocked by the ENS Firewall via specially crafted malicious sites.

4

Is there a fix available for CVE-2019-3586?

Yes, the May 2019 update (version 10.6.1) of McAfee Endpoint Security provides a fix for CVE-2019-3586.

5

Where can I find more information about CVE-2019-3586?

More information about CVE-2019-3586 can be found at the following references: http://www.securityfocus.com/bid/108416 and https://kc.mcafee.com/corporate/index?page=content&id=SB10280.

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