What is CVE-2013-0074?

CVE-2013-0074 is a high-severity vulnerability in Microsoft Silverlight. CVSS score: 7.8/10. Published 2013-03-13.

How severe is CVE-2013-0074?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2013-0074 known to be exploited?

Yes. CVE-2013-0074 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.

Vulnerability in Microsoft Silverlight

CVE-2013-0074

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."

Published 2013-03-13 · last modified 2026-08-14.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.789 (99.6th percentile), scored 2026-10-17.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.810 · newest: 0.789 · change: -0.021

Affected products

Microsoft Silverlight

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-05-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-15.

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

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:16565 (Broken Link, signature, vdb-entry)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:16516 (Broken Link, signature, vdb-entry)
www.us-cert.gov/ncas/alerts/TA13-071A (US Government Resource, Third Party Advisory, third-party-advisory)
docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022 (vendor-advisory, Patch, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2013-0074?: CVE-2013-0074 is a high-severity vulnerability in Microsoft Silverlight. CVSS score: 7.8/10. Published 2013-03-13.
How severe is CVE-2013-0074?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2013-0074 known to be exploited?: Yes. CVE-2013-0074 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.