Threats / Microsoft / CVE-2013-1347
CVE-2013-1347
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Internet Explorer vulnerability
Memory corruption vulnerability in Internet Explorer that allows arbitrary code execution in the context of the current user.
Verdict
Today item — known-exploited.
This CWE-94 code injection flaw enables remote attackers to corrupt memory and execute arbitrary code within the user's browser context. Active exploitation in the wild combined with high EPSS score indicates significant risk.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
13 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 2022-03-03).
Probability (EPSS)
EPSS 0.77889 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Internet Explorer. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-94 Code Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
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
Craft malicious web content that triggers memory corruption when processed by Internet Explorer's rendering engine.
Business
Users visiting compromised or attacker-controlled websites face immediate code execution risk within their browser session.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Execute arbitrary code with the privileges of the logged-in user, enabling theft of credentials, session tokens, and sensitive data.
Business
Credential compromise and data exfiltration expose enterprise users and customer information to unauthorized access.
3
Lateral reach — past segmentation narrative 3
Attacker
Establish persistence or pivot to adjacent systems using the compromised user's network access and trust relationships.
Business
Lateral movement within corporate networks increases breach scope and dwell time, amplifying incident response costs.
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