Internet Explorer
CVE-2019-0541 — MSHTML Engine Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input. An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability. The security update addresses the vulnerability by modifying how MSHTML engine validates input.
Overview
8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7
EPSS Score
0.53202
probability of exploitation in the next 30 days
0.9887 percentile - updated 2026-07-25
View on FIRST.org
Affected Products
31 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Internet Explorer 10 on Windows Server 2012 4480975 (Monthly Rollup) 4480965 (IE Cumulative) Low Remote Code Execution 4471330 4483187 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows 10 for 32-bit Systems | 4480962 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 for x64-based Systems | 4480962 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 4480961 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 4480961 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems | 4480973 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems | 4480973 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems | 4480978 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems | 4480978 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems | 4480978 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 4480966 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 4480966 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 4480966 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 4480116 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 4480116 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 4480116 (Security Update) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4480970 (Monthly Rollup) 4480965 (IE Cumulative) Important Remote Code Execution 4471318 4483187 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4480970 (Monthly Rollup) 4480965 (IE Cumulative) Important Remote Code Execution 4471318 4483187 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows 8.1 for 32-bit systems 4480963 (Monthly Rollup) 4480965 (IE Cumulative) Important Remote Code Execution 4471320 4483187 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows 8.1 for x64-based systems 4480963 (Monthly Rollup) 4480965 (IE Cumulative) Important Remote Code Execution 4471320 4483187 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows RT 8.1 | 4480963 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4480970 (Monthly Rollup) 4480965 (IE Cumulative) Low Remote Code Execution 4471318 4483187 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows Server 2012 R2 4480963 (Monthly Rollup) 4480965 (IE Cumulative) Low Remote Code Execution 4471320 4483187 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 11 on Windows Server 2016 | 4480961 (Security Update) |
Low | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows Server 2019 | 4480116 (Security Update) |
Low | Remote Code Execution | Yes |
| Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 4480968 (Monthly Rollup) 4480965 (IE Cumulative) Low Remote Code Execution 4471325 4483187 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 4480968 (Monthly Rollup) 4480965 (IE Cumulative) Low Remote Code Execution 4471325 4483187 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Microsoft Excel Viewer 2007 Service Pack 3 | 2596760 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2010 Service Pack 2 (32-bit editions) | 2553332 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2010 Service Pack 2 (64-bit editions) | 2553332 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2013 RT Service Pack 1 | 3172522 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2013 Service Pack 1 (32-bit editions) | 3172522 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2013 Service Pack 1 (64-bit editions) | 3172522 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2016 (32-bit edition) | 4022162 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2016 (64-bit edition) | 4022162 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office 2019 for 32-bit editions | Click to Run (Security Update) |
Important | Remote Code Execution | No |
| Microsoft Office 2019 for 64-bit editions | Click to Run (Security Update) |
Important | Remote Code Execution | No |
| Microsoft Office Word Viewer | 4462112 (Security Update) |
Important | Remote Code Execution | Maybe |
| Office 365 ProPlus for 32-bit Systems | Click to Run (Security Update) |
Important | Remote Code Execution | No |
| Office 365 ProPlus for 64-bit Systems | Click to Run (Security Update) |
Important | Remote Code Execution | No |
Patches
13 patches
| Article | Type | Restart |
|---|---|---|
4480962 |
Security Update | Yes |
4480961 |
Security Update | Yes |
4480973 |
Security Update | Yes |
4480978 |
Security Update | Yes |
4480966 |
Security Update | Yes |
4480116 |
Security Update | Yes |
4480963 |
Monthly Rollup | Yes |
2596760 |
Security Update | Maybe |
2553332 |
Security Update | Maybe |
3172522 |
Security Update | Maybe |
4022162 |
Security Update | Maybe |
Click to Run |
Security Update | No |
4462112 |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Eduardo Braun Prado working with iDefense Labs
References
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