Vulnerability

CVE-2017-0037

High· 8.1KEVEXPLOITCVSS8.1EPSS91%

.rules3/5

Microsoft Edge and Internet Explorer Type Confusion Vulnerability

Microsoft Edge and Internet Explorer have a type confusion vulnerability in mshtml.dll, which allows remote code execution.

Threat signal

100/100

Severe

Severity

high

CVSS

8.1

EPSS

91%

Active

KEV

CISA KEV — actively exploited

1517d overdue

AffectedMicrosoft — Edge and Internet Explorer

Added to KEV

2022-03-28

Federal patch due (BOD 22-01)

2022-04-18

Required action (CISA verbatim)

Apply updates per vendor instructions.

Vendor advisory + references

https://nvd.nist.gov/vuln/detail/CVE-2017-0037

CISA description: “Microsoft Edge and Internet Explorer have a type confusion vulnerability in mshtml.dll, which allows remote code execution.”

CVSS

v3.1Open in FIRST calculator →

8.1/ 10HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityHighRequires conditions outside attacker's control (race, brute-force, configuration
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

91.2%

probability of exploitation in next 30 days

p100

higher than 100% of all CVEs

3-day trend↑ 2.1pp

Statistically about to be weaponized — top-tier triage urgency.

Vendor VEX

No VEX statements published for CVE-2017-0037. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: yes
impact: total
mission: support

Lifecycle

2022-03-28Added to CISA KEVransomware: Unknown
2022-03-28Public exploit observedexploitdb
2022-03-28Published
2022-04-18Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.