CVEs / CVE-2019-1429
CVE-2019-1429: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- high 7.5 CVSS 3.1 (NVD)
- EPSS 77.2% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.
Check your servers with Stackurity Already using Stackurity? Search for CVE-2019-1429
Summary
Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.
Description
A 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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Internet Explorer 9 | Windows Server 2008 for 32-bit Systems Service Pack 2 | — |
| Microsoft Internet Explorer 9 | Windows Server 2008 for x64-based Systems Service Pack 2 | — |
| Microsoft Internet Explorer 11 | Windows 7 for 32-bit Systems Service Pack 1 | — |
| Microsoft Internet Explorer 11 | Windows 7 for x64-based Systems Service Pack 1 | — |
| Microsoft Internet Explorer 11 | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | — |
| Microsoft Internet Explorer 11 | Windows 8.1 for 32-bit systems | — |
| Microsoft Internet Explorer 11 | Windows 8.1 for x64-based systems | — |
| Microsoft Internet Explorer 11 | Windows Server 2012 R2 | — |
| Microsoft Internet Explorer 11 | Windows RT 8.1 | — |
| Microsoft Internet Explorer 11 | Windows 10 for 32-bit Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 for x64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows Server 2016 | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1607 for 32-bit Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1607 for x64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1709 for 32-bit Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1709 for x64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1803 for 32-bit Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1803 for x64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1803 for ARM64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1809 for 32-bit Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1809 for x64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1809 for ARM64-based Systems | — |
| Microsoft Internet Explorer 11 | Windows Server 2019 | — |
| Microsoft Internet Explorer 11 | Windows 10 Version 1709 for ARM64-based Systems | — |
| Microsoft Internet Explorer 11 on Windows Server 2012 | unspecified | — |
| Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems | unspecified | — |
| Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems | unspecified | — |
| Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems | unspecified | — |
| Microsoft Internet Explorer 10 | Windows Server 2012 | — |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 3 May 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-416, CWE-787 |
References
- CVE-2019-1429 on NVD
- CVE-2019-1429 in the CISA KEV catalog
- http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html Exploit, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1429 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.