Threats / Microsoft / CVE-2013-0074
CVE-2013-0074
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Silverlight vulnerability
Microsoft Silverlight improperly validates pointers during HTML object rendering, allowing remote attackers to execute arbitrary code through crafted Silverlight applications.
Verdict
Today item, not a backlog item.
A pointer validation flaw in Silverlight's HTML object rendering enables remote code execution. The vulnerability has been actively exploited in the wild and associated with ransomware campaigns, presenting significant risk to users running vulnerable Silverlight versions.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
7 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.81868 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Silverlight. Confirm exact fixed builds in the vendor advisory.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious Silverlight application that exploits improper pointer validation in HTML object rendering.
Business
Users who load the attacker's application face arbitrary code execution on their systems.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I host the exploit on a website or distribute it through email, social engineering, or compromised sites.
Business
The organization's endpoints become infected with malware, ransomware, or become part of a botnet.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute ransomware or data exfiltration payloads with user-level or elevated privileges.
Business
Critical business operations are disrupted, sensitive data is compromised, and recovery costs mount.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05