CVE-2019-3638

Name: CVE-2019-3638
Creator: NVD / NIST
Published: 2019-09-12T16:15:12.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 1.92%

Last modified Jun 17, 2026

CVE-2019-3638 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Reflected Cross Site Scripting vulnerability in Administrators web console in McAfee Web Gateway (MWG) 7.8.x prior to 7.8.2.13 allows remote attackers to collect sensitive information or execute commands with the MWG administrator's credentials via tricking the administrator to click on a carefully constructed malicious link.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

Description

Reflected Cross Site Scripting vulnerability in Administrators web console in McAfee Web Gateway (MWG) 7.8.x prior to 7.8.2.13 allows remote attackers to collect sensitive information or execute commands with the MWG administrator's credentials via tricking the administrator to click on a carefully constructed malicious link.

Metrics

CVSS 3.1

9.6/10

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

EPSS Probability

1.92%

77.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mcafee	Web Gateway	>= 7.8.2, < 7.8.2.13
Mcafee	Web Gateway	>= 8.0.0, < 8.2.0

References

Timeline

Published: Sep 12, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3638?

How severe is CVE-2019-3638?

CVE-2019-3638 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3638?

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-2019-3638?

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

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Source: NVD / NIST