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.
- Vendor
- Microsoft
- Product
- Edge and Internet Explorer
- CVSS
- 8.1
- EPSS (exploit probability)
- 80.4%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2017-0037 being exploited?
Yes. CISA added CVE-2017-0037 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 80.4% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2017-0037 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Microsoft Internet Explorer and Edge CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2016-3351 Microsoft Internet Explorer and Edge Information Disclosure Vulnerabilityransomware use | [ MEDIUM ] | 6.5 | 26.5% | |
| CVE-2020-0878 Microsoft Edge and Internet Explorer Memory Corruption Vulnerabilityransomware use | [ MEDIUM ] | 4.2 | 2.7% |