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

Source: https://junglewise.ai/threats/cve-2017-0037-microsoft-edge-and-internet-explorer-type-confusion-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-28. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2017-0037 · Severity: critical · CVSS 8.1 · Exploited in the wild · Published 2022-03-28

A type confusion vulnerability exists in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll. Remote attackers can execute arbitrary code via crafted CSS token sequences and JavaScript code operating on a TH element.

Technologies: [Microsoft Edge](https://junglewise.ai/threats/technologies/edge), [Microsoft Internet Explorer](https://junglewise.ai/threats/technologies/internet-explorer). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2017-0037 exploited in the wild?** Yes. CVE-2017-0037 is known to be exploited in the wild, first recorded on 28 March 2022. Treat it as urgent.

**How severe is CVE-2017-0037?** Critical severity, with a CVSS score of 8.1, published 28 March 2022.

**Which products and versions are affected?** Microsoft Internet Explorer 10; Microsoft Internet Explorer 11; Microsoft Edge.

**Is there a fix for CVE-2017-0037?** A patch was published on 2017-03-14: MSRC advisory published. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2017-0037 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2017-0037?** Check whether you run Microsoft Edge or Microsoft Internet Explorer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Microsoft Internet Explorer 10
- Microsoft Internet Explorer 11
- Microsoft Edge

## Timeline

- 2017-03-14: patched: MSRC advisory published.
- 2022-03-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
- 2017-03-01: exploited: Public reports of 0-day exploitation.

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