CVE-2019-3635

Name: CVE-2019-3635
Creator: NVD / NIST
Published: 2019-08-14T17:15:11.33+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2019-3635 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Exfiltration of Data in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows attackers to obtain sensitive data via crafting a complex webpage that will trigger the Web Gateway to block the user accessing an iframe.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

Exfiltration of Data in McAfee Web Gateway (MWG) 7.8.2.x prior to 7.8.2.12 allows attackers to obtain sensitive data via crafting a complex webpage that will trigger the Web Gateway to block the user accessing an iframe.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.18%

63.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mcafee	Web Gateway	>= 7.8.2.0, < 7.8.2.12

References

Timeline

Published: Aug 14, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3635?

How severe is CVE-2019-3635?

CVE-2019-3635 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3635?

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-2019-3635?

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

Scan your code now

Source: NVD / NIST