CVE-2017-0037
Exploitation confirmed. First attested on 2022-03-28 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2017-02-26
- WeaknessCWE-843
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2017-02-2623:59CVE publishedNVD
- 2022-03-28Listed as exploited by GCVEGCVE
- 2022-03-28Exploitation first reportedCISA KEV
- 2022-03-28Added to the CISA KEV catalogCISA KEV
- 2025-02-1016:02SSVC exploitation set to activeCISA-ADP
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-0037?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-0037?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 11.x | = 11 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- CISA’s required action: Apply updates per vendor instructions.due 2022-04-18
Advisories and patches
- portal.msrc.microsoft.comPatch · Vendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
CISA Known Exploited Vulnerability
- Date Added
- 2022-03-28
- Patch Due Date
- 2022-04-18
- Ransomware Use
- Unknown
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2022-03-28
- GCVEexploitation2022-03-28
- CISA-ADPSSVC decisionactive2025-02-10
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.18.12025-02-10
- NVDCVSS 3.18.1read 2026-10-23
- NVDCVSS 2.07.6read 2026-10-23
- CISA-ADPweakness (CWE)CWE-8432025-02-10
- NVDweakness (CWE)CWE-843read 2026-10-23
- FIRST EPSSEPSS score80.4 %read 2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
- Exploit-DBdetectionread 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2017-02-26
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2017-0037?
Is CVE-2017-0037 actively exploited?
What is the CVSS score for CVE-2017-0037?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.