---
id: CVE-2013-0074
title: >-
  Microsoft Silverlight 5, and 5 Developer Runtime, before 5.1.20125.0 does not
  properly validate pointers during HTML object rendering, which allows remote
  attackers to execute arbitrary code via a crafted Silverlight application, aka
  "Si…
summary: >-
  Microsoft Silverlight 5, and 5 Developer Runtime, before 5.1.20125.0 does not
  properly validate pointers during HTML object rendering, which allows remote
  attackers to execute arbitrary code via a crafted Silverlight application, aka
  "Si…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
vendor: microsoft
product: silverlight
affected:
  - 'silverlight >= 5.0, < 5.1.20125.0'
patched:
  - silverlight 5.1.20125.0
published: '2013-03-13'
updated: '2026-08-14'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2013-0074'
references:
  - url: 'http://www.us-cert.gov/ncas/alerts/TA13-071A'
    label: secure@microsoft.com
  - url: >-
      https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022
    label: secure@microsoft.com
  - url: >-
      https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16516
    label: secure@microsoft.com
  - url: >-
      https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16565
    label: secure@microsoft.com
  - url: 'http://www.us-cert.gov/ncas/alerts/TA13-071A'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16516
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16565
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-0074
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.81009
epssPercentile: 0.99624
kev: true
kevDateAdded: '2022-05-25'
kevDueDate: '2022-06-15'
kevRansomware: true
exploited: true
exploitAvailable: true
ingestedAt: '2026-08-14T06:15:27.182Z'
exploits:
  exploitdb: true
  metasploit:
    - exploit/windows/browser/ms13_022_silverlight_script_object
  checkedAt: '2026-09-21T15:23:32.598Z'
---

## Overview

Microsoft Silverlight 5, and 5 Developer Runtime, before 5.1.20125.0 does not properly validate pointers during HTML object rendering, which allows remote attackers to execute arbitrary code via a crafted Silverlight application, aka "Silverlight Double Dereference Vulnerability."

## Affected

- `silverlight >= 5.0, < 5.1.20125.0`

## Remediation

Upgrade past the affected range:

- `silverlight 5.1.20125.0`