CISA KEV · Known exploitedHigh

CVE-2017-0037

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.

CVSS: 8.1
EPSS: 80.4%
CISA KEV: Listed
Published: 2017.02.27

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability80.4%

Technical severityCVSS 8.1

Vulnerability overview

Affected product and versions

Product: Microsoft Edge and Internet Explorer
Affected versions: Internet Explorer 10 and 11 and Edge, 11
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.04.18

1
Identify
Confirm that Microsoft Edge and Internet Explorer and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-704, CWE-843
KEV added: 2022.03.28
Ransomware use: 미확인