Vulnerability · CVE-2019-0541
Microsoft MSHTML Remote Code Execution Vulnerability
Published Jan 8, 2019 · catalog updated Jun 16, 2026 · Microsoft MSHTML
Patch now
CVE-2019-0541 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Microsoft MSHTML against the vendor advisory and apply that fix. The CVSS score does not change the priority.
- Severity
- High8.8
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 53.20%
- Remediation
- Remediation guidance
- Affected products
- cpe microsoft/excel viewer · cpe microsoft/internet explorer · cpe microsoft/office · cpe microsoft/office 365 proplus · vendor Microsoft MSHTML
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe microsoft/excel viewer2007
- cpe microsoft/internet explorer10
- cpe microsoft/internet explorer11
- cpe microsoft/internet explorer9
- cpe microsoft/office2010
- cpe microsoft/office2013
- cpe microsoft/office2016
- cpe microsoft/office2019
- cpe microsoft/office 365 proplusversion unspecified
- vendor Microsoft MSHTMLversion unspecified
How to fix CVE-2019-0541
Recommended remediation
Apply updates per vendor instructions. CISA due date May 3, 2022.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2019-0541 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Microsoft MSHTML against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Compare what you have installed with microsoft/excel viewer 2007; microsoft/internet explorer 10; microsoft/internet explorer 11; microsoft/internet explorer 9. Apply updates per vendor instructions.
What should an analyst verify?
CWE-77: Command Injection. EPSS 53.20%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jan 8, 2019 · Catalog
Detected
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
May 3, 2022 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.
Sources
- CISA KEVConfirmed exploitationCVE-2019-0541
Microsoft MSHTML engine contains an improper input validation vulnerability that allows for remote code execution vulnerability.
cisa.gov - CVE.orgVulnerability recordCVE-2019-0541
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2019-0541
30-day exploitation probability 53.2%
first.org - Exploit DatabasePublic exploit reference46536
Public archive entry. The exploit body is not stored here.
exploit-db.com - NIST NVDVulnerability recordCVE-2019-0541
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Ex
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2019-0541
Microsoft MSHTML engine contains an improper input validation vulnerability that allows for remote code execution vulnerability.
vulncheck.com
References
Freshness
Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.