Threats / Microsoft / CVE-2017-0037
CVE-2017-0037
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Edge and Internet Explorer vulnerability
Type confusion vulnerability in mshtml.dll affecting Microsoft Edge and Internet Explorer enables remote code execution when processing malicious content.
Verdict
Today item — known-exploited.
A type confusion flaw in the HTML rendering engine allows attackers to execute arbitrary code remotely. The vulnerability has been actively exploited in the wild and carries high exploitation likelihood.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
2 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 2022-03-28).
Probability (EPSS)
EPSS 0.80386 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Edge and Internet Explorer. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-704 CWE-704.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
WeaknessCWE-704 · CWE-704
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 a malicious webpage or email containing specially formatted HTML that triggers type confusion in mshtml.dll processing.
Business
Users visiting compromised or attacker-controlled websites face immediate code execution risk without additional user interaction.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Trigger memory corruption through the type confusion to gain control of execution flow within the browser process.
Business
Attackers gain ability to execute arbitrary code with browser privileges, potentially accessing user data and system resources.
3
Lateral reach — past segmentation narrative 3
Attacker
Escalate from browser context to system-level access through secondary exploitation or privilege escalation techniques.
Business
Full system compromise becomes possible, enabling data theft, malware installation, and lateral movement within enterprise networks.
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