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Vulnerabilities

Vulnerability · CVE-2017-0037

Microsoft Edge and Internet Explorer Type Confusion Vulnerability

Published Feb 26, 2017 · catalog updated Jun 16, 2026 · Microsoft Edge and Internet Explorer

Patch now

CVE-2017-0037 is in the CISA known-exploited catalog, due Apr 18, 2022. Confirm Microsoft Edge and Internet Explorer against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
80.39%
Remediation
Remediation guidance
Affected products
cpe microsoft/edge · cpe microsoft/internet explorer · vendor Microsoft Edge and Internet Explorer

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/edgeversion unspecified
  • cpe microsoft/internet explorer11
  • vendor Microsoft Edge and Internet Explorerversion unspecified

How to fix CVE-2017-0037

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-0037 is in the CISA known-exploited catalog, due Apr 18, 2022. Confirm Microsoft Edge and Internet Explorer against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with microsoft/internet explorer 11. Apply updates per vendor instructions.

What should an analyst verify?

CWE-704; CWE-843: Access of Resource Using Incompatible Type (Type Confusion). EPSS 80.39%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 26, 2017 · Catalog

    Detected

    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.

  2. Mar 28, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 18, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2017-0037

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

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-0037

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-0037

    30-day exploitation probability 80.4%

    first.org
  • Exploit DatabasePublic exploit reference41454

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Exploit DatabasePublic exploit reference42354

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Exploit DatabasePublic exploit reference43125

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2017-0037

    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 Casc

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-0037

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

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.