---
id: "CVE-2013-3163"
kind: "vulnerability"
aliases: ["CVE-2013-3163"]
title: "Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of\u2026"
severity: "critical"
cvss: 9.3
epss: null
exploited: true
status: "open"
category: "other"
products: [{"name": "Microsoft Internet Explorer", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft internet explorer", "fixed": [], "affected": "= 8", "ecosystem": "vendor"}, {"name": "microsoft internet explorer", "fixed": [], "affected": "= 9", "ecosystem": "vendor"}, {"name": "microsoft internet explorer", "fixed": [], "affected": "= 10", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["end-user-browsers", "exploited", "internet-explorer", "other", "windows"]
not_affected_if: ["no-internet-explorer-installed"]
published_at: "2013-07-10T03:46:10+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-3163", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-3163", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of…

Microsoft Internet Explorer has a memory corruption flaw that lets a remote attacker run code or crash the browser through a crafted website. CISA lists it as actively exploited in the wild.

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

## Affected

- vendor:Microsoft Internet Explorer affected ? fixed ?
- vendor:microsoft internet explorer affected = 8 fixed ?
- vendor:microsoft internet explorer affected = 9 fixed ?
- vendor:microsoft internet explorer affected = 10 fixed ?

## How to check

Check whether any machine runs Internet Explorer: look for iexplore.exe or the Internet Explorer entry in installed programs.

## Fix

Remove or disconnect Internet Explorer, since CISA says the product is end-of-life and should be disconnected if still in use. Patch status for the version in use is unknown from the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-3163
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2013-3163

## From the sources

Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2013-3144 and CVE-2013-3151.

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