CVE-2017-0037
Microsoft Edge and Internet Explorer Type Confusion Vulnerability
- High 8.1
- Exploited: added to CISA KEV 28 Mar 2022
- A public exploit reference is listed
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.
Key facts
- Published
- 26 Feb 2017
- Last changed
- 21 Oct 2025
- Assigned by
- microsoft
- KEV added
- 28 Mar 2022
- KEV fix due
- 18 Apr 2022
- EPSS
- 80.386% likely to be exploited in the next 30 days, higher than 99.628% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 8.1CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft Corporation | Internet Browser |
|
Timeline
- 26 Feb 2017 Published
- 28 Mar 2022 CVE-2017-0037 added to CISA KEV
- 28 Mar 2022 Added to the CISA KEV catalogue