Important CVSS 6.3 EPSS 0.03635 2019-04 archive

Executive Summary

A tampering vulnerability exists when Microsoft browsers do not properly validate input under specific conditions. An attacker who exploited the vulnerability could pass custom command line parameters. In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of enticement in an email or instant message. The security update addresses the vulnerability by correcting how Microsoft browsers validate input.

Overview

6.3
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Tampering
Released Apr 9 2019
Last Updated Apr 9 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.03635 — 0.88078 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 5.7

EPSS Score

0.03635
probability of exploitation in the next 30 days
0.88078 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

44 affected products
Product KB Article Severity Impact Restart Required
Internet Explorer 10 on Windows Server 2012 4493451 (Monthly Rollup) 4493435 (IE Cumulative) Low Tampering Yes
Internet Explorer 11 on Windows 10 for 32-bit Systems 4493475 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4493475 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4493470 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4493470 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4493474 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4493474 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4493441 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems 4493441 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4493441 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4493464 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems 4493464 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4493464 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems 4493509 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems 4493509 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems 4493509 (Security Update) Important Tampering Yes
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4493472 (Monthly Rollup) 4493435 (IE Cumulative) Important Tampering Yes
Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4493472 (Monthly Rollup) 4493435 (IE Cumulative) Important Tampering Yes
Internet Explorer 11 on Windows 8.1 for 32-bit systems 4493446 (Monthly Rollup) 4493435 (IE Cumulative) Important Tampering Yes
Internet Explorer 11 on Windows 8.1 for x64-based systems 4493446 (Monthly Rollup) 4493435 (IE Cumulative) Important Tampering Yes
Internet Explorer 11 on Windows RT 8.1 4493446 (Monthly Rollup) Important Tampering Yes
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4493472 (Monthly Rollup) 4493435 (IE Cumulative) Low Tampering Yes
Internet Explorer 11 on Windows Server 2012 R2 4493446 (Monthly Rollup) 4493435 (IE Cumulative) Low Tampering Yes
Internet Explorer 11 on Windows Server 2016 4493470 (Security Update) Low Tampering Yes
Internet Explorer 11 on Windows Server 2019 4493509 (Security Update) Low Tampering Yes
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 4493471 (Monthly Rollup) 4493435 (IE Cumulative) Low Tampering Yes
Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 4493471 (Monthly Rollup) 4493435 (IE Cumulative) Low Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 4493475 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 4493475 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 4493470 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 4493470 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems 4493474 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems 4493474 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems 4493441 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems 4493441 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems 4493441 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems 4493464 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems 4493464 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems 4493464 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems 4493509 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems 4493509 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems 4493509 (Security Update) Important Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows Server 2016 4493470 (Security Update) Low Tampering Yes
Microsoft Edge (EdgeHTML-based) on Windows Server 2019 4493509 (Security Update) Low Tampering Yes

Patches

11 patches
Article Type Restart
4493451 (Monthly Rollup) 4493435 Monthly Rollup Yes
4493475 Security Update Yes
4493470 Security Update Yes
4493474 Security Update Yes
4493441 Security Update Yes
4493464 Security Update Yes
4493509 Security Update Yes
4493472 (Monthly Rollup) 4493435 Monthly Rollup Yes
4493446 (Monthly Rollup) 4493435 Monthly Rollup Yes
4493446 Monthly Rollup Yes
4493471 (Monthly Rollup) 4493435 Monthly Rollup Yes

Known Exploits

Acknowledgments

Rio Sherri of MDSec, zemnmez Thomas Shadwell https://zemn.me