How severe is CVE-2017-0037?

CVE-2017-0037 has a CVSS 3.1 base score of 8.1 (HIGH). EPSS estimates a 80.4% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2017-0037: Microsoft Edge and Internet Explorer Type Confusion

CISA Known Exploited Vulnerabilities

Microsoft Edge and Internet Explorer Type Confusion Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-03-28

Remediation due

2022-04-18

Required action
Apply updates per vendor instructions.

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

Description

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.

Severity

CVSS 3.1 · CISA8.1 HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 14, 2026

All KEV statistics→

CISA added CVE-2017-0037 to the KEV catalog 1,856 days after its CVE record was published.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (80.4%) is higher than that of 64% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Microsoft Corporation	Microsoft Corporation Internet Browser	Internet Explorer 10 and 11 and Edge

References

9 Links

Exploits & PoCs

Vulnerability databases

Other references

Record Details

Published

2017-02-26

Last updated

2025-10-21

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.