# CVE-2020-0674: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

> CVE-2020-0674: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability. CVSS 7.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2020-0674
Last updated: 2025-10-21T23:35:51Z

- Published: 2020-02-11 21:22 UTC · Updated: 2025-10-21 23:35 UTC · Assigner: microsoft
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 86.9%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown

## 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-2020-0673, CVE-2020-0710, CVE-2020-0711, CVE-2020-0712, CVE-2020-0713, CVE-2020-0767.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Internet Explorer 10
- Microsoft: Internet Explorer 11
- Microsoft: Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
- Microsoft: Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
- Microsoft: Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
- Microsoft: Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems
- Microsoft: Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems
- Microsoft: Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems
- Microsoft: Internet Explorer 11 on Windows Server 2012
- Microsoft: Internet Explorer 9

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-0674)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2020-0674)
- [http://packetstormsecurity.com/files/159137/Microsoft-Internet-Explorer-11-Use-After-Free.html](http://packetstormsecurity.com/files/159137/Microsoft-Internet-Explorer-11-Use-After-Free.html)
- [http://packetstormsecurity.com/files/161309/Microsoft-Internet-Explorer-11-Use-After-Free.html](http://packetstormsecurity.com/files/161309/Microsoft-Internet-Explorer-11-Use-After-Free.html)
- [http://packetstormsecurity.com/files/162565/Microsoft-Internet-Explorer-8-11-Use-After-Free.html](http://packetstormsecurity.com/files/162565/Microsoft-Internet-Explorer-8-11-Use-After-Free.html)
- [https://github.com/maxpl0it/CVE-2020-0674-Exploit](https://github.com/maxpl0it/CVE-2020-0674-Exploit)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0674](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0674)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2020-0674 · Markdown: https://rewindex.com/cve/CVE-2020-0674.md · JSON: https://rewindex.com/api/v1/cves/CVE-2020-0674 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:03:31.306Z