Important CVSS 4.2 EPSS 0.02335 2019-06 archive

Executive Summary

An information disclosure vulnerability exists when affected Microsoft browsers improperly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit the vulnerability, in a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.

Overview

4.2
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Information Disclosure
Released Jun 11 2019
Last Updated Jun 11 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.02335 — 0.81802 percentile
NVD CVSS 4.2 MEDIUM — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
Low
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
Temporal Score: 3.9

EPSS Score

0.02335
probability of exploitation in the next 30 days
0.81802 percentile - updated 2026-07-25
View on FIRST.org

Affected Products

42 affected products
Product KB Article Severity Impact Restart Required
Internet Explorer 10 on Windows Server 2012 4503285 (Monthly Rollup) 4503259 (IE Cumulative) Low Information Disclosure 4499171 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows 10 for 32-bit Systems 4503291 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4503291 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4503267 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4503267 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems 4503279 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems 4503279 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4503284 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems 4503284 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4503284 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4503286 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems 4503286 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4503286 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems 4503327 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems 4503327 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems 4503327 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems 4503293 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems 4503293 (Security Update) Important Information Disclosure Yes
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems 4503293 (Security Update) Important Information Disclosure No
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4503292 (Monthly Rollup) 4503259 (IE Cumulative) Important Information Disclosure 4499164 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4503292 (Monthly Rollup) 4503259 (IE Cumulative) Important Information Disclosure 4499164 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows 8.1 for 32-bit systems 4503276 (Monthly Rollup) 4503259 (IE Cumulative) Important Information Disclosure 4499151 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows 8.1 for x64-based systems 4503276 (Monthly Rollup) 4503259 (IE Cumulative) Important Information Disclosure 4499151 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows RT 8.1 4503276 (Monthly Rollup) Important Information Disclosure Yes
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4503292 (Monthly Rollup) 4503259 (IE Cumulative) Low Information Disclosure 4499164 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows Server 2012 4503259 (IE Cumulative) Low Information Disclosure Yes
Internet Explorer 11 on Windows Server 2012 R2 4503276 (Monthly Rollup) 4503259 (IE Cumulative) Low Information Disclosure 4499151 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 11 on Windows Server 2016 4503267 (Security Update) Low Information Disclosure Yes
Internet Explorer 11 on Windows Server 2019 4503327 (Security Update) Low Information Disclosure Yes
Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 4503273 (Monthly Rollup) 4503259 (IE Cumulative) Low Information Disclosure 4499149 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 4503273 (Monthly Rollup) 4503259 (IE Cumulative) Low Information Disclosure 4499149 4498206 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O Yes None Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 4503291 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 4503291 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 4503267 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 4503267 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems 4503279 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems 4503279 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems 4503284 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems 4503284 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems 4503284 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems 4503286 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems 4503286 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems 4503286 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems 4503327 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems 4503327 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems 4503327 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems 4503293 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems 4503293 (Security Update) Important Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems 4503293 (Security Update) Important Information Disclosure No
Microsoft Edge (EdgeHTML-based) on Windows Server 2016 4503267 (Security Update) Low Information Disclosure Yes
Microsoft Edge (EdgeHTML-based) on Windows Server 2019 4503327 (Security Update) Low Information Disclosure Yes

Patches

9 patches
Article Type Restart
4503291 Security Update Yes
4503267 Security Update Yes
4503279 Security Update Yes
4503284 Security Update Yes
4503286 Security Update Yes
4503327 Security Update Yes
4503293 Security Update Yes
4503276 Monthly Rollup Yes
4503259 IE Cumulative Yes

Known Exploits

Acknowledgments

None