---
id: "CVE-2020-0674"
kind: "vulnerability"
aliases: ["CVE-2020-0674"]
title: "Microsoft Internet Explorer: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability"
severity: "high"
cvss: 7.6
epss: 0.86863
exploited: true
status: "open"
category: "other"
products: [{"name": "Microsoft Internet Explorer", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "internet-explorer", "other", "windows"]
not_affected_if: ["no-internet-explorer", "patched-systems"]
published_at: "2020-02-11T22:15:14+00:00"
first_seen_at: "2026-10-23T19:11:53+00:00"
updated_at: "2026-10-23T21:57:34+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0674", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-0674", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0674", "first_seen_at": "2026-10-23T21:57:34+00:00"}]
---

# Microsoft Internet Explorer: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

Microsoft Internet Explorer's Scripting Engine mishandles objects in memory, causing memory corruption. An attacker who gets a user to load a malicious page can run code as that user.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft Internet Explorer affected ? fixed ?

## How to check

Check whether Internet Explorer is installed and enabled on Windows machines the team runs; the sources do not give a registry key or command.

## Fix

Apply the Microsoft security update for the Internet Explorer Scripting Engine per vendor instructions; the sources do not name the KB or patched build.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0674
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2020-0674
- 2026-10-23T21:57:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-0674

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_