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CVE-2013-0074

Published: Mar 13, 2013Updated: Aug 14, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
7.8HIGH
NVD MITRE
EPSS Score
81.0%
Top 0.4%
CISA KEV
Active Exploitation
Since May 25, 2022
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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."

In plain language

AI Act now

CVE-2013-0074 is a serious security flaw in Microsoft Silverlight that could let an attacker run code from a malicious Silverlight/HTML page, so a typical small business should address it immediately if you still have Silverlight in use—especially since it’s end-of-life.

Executive summary

CVE-2013-0074 is a remote code execution issue in Microsoft Silverlight 5 (and 5 Developer Runtime) via improper pointer validation during HTML object rendering of a crafted Silverlight application; CISA lists it as exploited in ransomware campaigns, and the product is end-of-life.

If affected, business impact
Remote code executionRansomware riskTotal system compromiseOperational disruption

What to do now

  1. Check whether Microsoft Silverlight is installed and in use on any business devices (browsers, kiosks, line-of-business apps, or internal web portals).
  2. If Silverlight is still in use, remove it or disconnect the affected systems from the network.
  3. If you have a supported reason to keep it temporarily, update Microsoft Silverlight to 5.1.20125.0 (or later) as the fixed version.
  4. Confirm the update took effect by re-checking installed Silverlight versions and then scan/monitor for unusual Silverlight activity in browser and system logs.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

NVD-CWE-noinfo

Affected Products

Microsoft Corp
commercial·USaka microsoft, microsoft corporation
silverlightOn-premDesktop App
Operating Systems / windows
Microsoft SilverlightOn-premDesktop App
Consumer Software / productivity
and 1 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:May 25, 2022
Remediation due:Jun 15, 2022
Ransomware:Known ransomware use

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Official Patch Available
Is your org exposed to CVE-2013-0074?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

http://www.us-cert.gov/ncas/alerts/TA13-071A
us-cert.gov
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022
docs.microsoft.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16516
oval.cisecurity.org
and 5 more references View all →

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