Answer in brief
CVE-2019-1429 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Microsoft/Internet Explorer 10 (generic), Microsoft/Internet Explorer 11 (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/Internet Explorer 10 (generic), Microsoft/Internet Explorer 11 (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/Internet Explorer 10generic | Windows Server 2012 | Not reported |
| Microsoft/Internet Explorer 11generic | Windows 7 for 32-bit Systems Service Pack 1 || Windows 7 for x64-based Systems Service Pack 1 || Windows Server 2008 R2 for x64-based Systems Service Pack 1 || Windows 8.1 for 32-bit systems || Windows 8.1 for x64-based systems || Windows Server 2012 R2 || Windows RT 8.1 || Windows 10 for 32-bit Systems || Windows 10 for x64-based Systems || Windows Server 2016 || Windows 10 Version 1607 for 32-bit Systems || Windows 10 Version 1607 for x64-based Systems || Windows 10 Version 1709 for 32-bit Systems || Windows 10 Version 1709 for x64-based Systems || Windows 10 Version 1803 for 32-bit Systems || Windows 10 Version 1803 for x64-based Systems || Windows 10 Version 1803 for ARM64-based Systems || Windows 10 Version 1809 for 32-bit Systems || Windows 10 Version 1809 for x64-based Systems || Windows 10 Version 1809 for ARM64-based Systems || Windows Server 2019 || Windows 10 Version 1709 for ARM64-based Systems | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows Server 2012generic | unspecified | Not reported |
| Microsoft/Internet Explorer 9generic | Windows Server 2008 for 32-bit Systems Service Pack 2 || Windows Server 2008 for x64-based Systems Service Pack 2 | Not reported |
Published upstream
Nov 12, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jan 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2019-1429 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Microsoft/Internet Explorer 10 (generic), Microsoft/Internet Explorer 11 (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Microsoft/Internet Explorer 10 (generic), Microsoft/Internet Explorer 11 (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems (generic), Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Microsoft/Internet Explorer 10generic | Windows Server 2012 | Not reported |
| Microsoft/Internet Explorer 11generic | Windows 7 for 32-bit Systems Service Pack 1 || Windows 7 for x64-based Systems Service Pack 1 || Windows Server 2008 R2 for x64-based Systems Service Pack 1 || Windows 8.1 for 32-bit systems || Windows 8.1 for x64-based systems || Windows Server 2012 R2 || Windows RT 8.1 || Windows 10 for 32-bit Systems || Windows 10 for x64-based Systems || Windows Server 2016 || Windows 10 Version 1607 for 32-bit Systems || Windows 10 Version 1607 for x64-based Systems || Windows 10 Version 1709 for 32-bit Systems || Windows 10 Version 1709 for x64-based Systems || Windows 10 Version 1803 for 32-bit Systems || Windows 10 Version 1803 for x64-based Systems || Windows 10 Version 1803 for ARM64-based Systems || Windows 10 Version 1809 for 32-bit Systems || Windows 10 Version 1809 for x64-based Systems || Windows 10 Version 1809 for ARM64-based Systems || Windows Server 2019 || Windows 10 Version 1709 for ARM64-based Systems | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systemsgeneric | unspecified | Not reported |
| Microsoft/Internet Explorer 11 on Windows Server 2012generic | unspecified | Not reported |
| Microsoft/Internet Explorer 9generic | Windows Server 2008 for 32-bit Systems Service Pack 2 || Windows Server 2008 for x64-based Systems Service Pack 2 | Not reported |
Published upstream
Nov 12, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jan 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.
Quoted source text, attributed separately from HOL analysis.