CVE-2017-0037
HIGHCISA KEVEPSS 100th pctlDescription
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.
How to fix
Actively exploited, no published fix found yet
CISA required action: Apply updates per vendor instructions.
Federal remediation due: 2022-04-18
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
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.
Apply updates per vendor instructions.
Remediation due: 2022-04-18
References
Related Vulnerabilities
Other CWE-843 (Type Confusion) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2012-0507 | Critical | 9.8 | 98% | KEV + Ransom | - |
| CVE-2017-8291 | High | 7.8 | 96% | KEV | Fix |
| CVE-2011-0611 | High | 8.8 | 94% | KEV | Fix |
| CVE-2019-0752 | High | 7.5 | 82% | KEV + Ransom | - |
| CVE-2016-7201 | High | 8.8 | 80% | KEV | - |
| CVE-2020-6418 | High | 8.8 | 79% | KEV | Fix |
Common questions
How do I fix CVE-2017-0037?
No published fix for CVE-2017-0037 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-04-18. Apply the vendor's mitigations per CISA's guidance.
Is CVE-2017-0037 being actively exploited?
Yes. CVE-2017-0037 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2022-04-18. Treat it as a priority whatever its CVSS score says.
How severe is CVE-2017-0037?
CVE-2017-0037 has a CVSS v3 base score of 8.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2017-0037
Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.