CVE-2017-0037

CRITICALNVD 8.19.0
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. The 9.0 is the floor for confirmed exploitation, not an impact rating: this CVE's impact severity (EG Severity) is CVSS 8.1 HIGH under GitHub Security Advisory CVSS. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 80%CVSS: 8.1Exploit: Exploit-DB (verified) · other public PoCExposed services: Not assessed

A fix is available — apply it.

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 v3
8.1
EG Score
9.0CRITICALhigh confidence
EG Risk
76
EG Risk 76/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
80%
EPSS %ILE
99th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is the CISA KEV floor for confirmed exploitation, not an impact rating: its impact severity (EG Severity) is CVSS 8.1 HIGH.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
80% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Attend at medium mission impactTrack at low, Attend at medium and Act at high mission impact.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“Apply updates per vendor instructions.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://nvd.nist.gov/vuln/detail/CVE-2017-0037

Published

February 26, 2017

Last Modified

June 17, 2026

Advisory Details (9)

Auto-updated Oct 19, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available. Sources: microsoft.
Web page

Microsoft Internet Explorer 11 (Windows 7 x86) - 'mshtml.dll' Remote Code Execution (MS17-007) - Windows_x86 remote Exploit

https://www.exploit-db.com/exploits/43125/
Web page

Microsoft Internet Explorer - 'mshtml.dll' Remote Code Execution (MS17-007) - Windows_x86-64 remote Exploit

https://www.exploit-db.com/exploits/42354/
Web page

Microsoft Edge / Internet Explorer - 'HandleColumnBreakOnColumnSpanningElement' Type Confusion - Windows dos Exploit

https://www.exploit-db.com/exploits/41454/
Microsoft

Security Update Guide - Microsoft Security Response Center

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0037
Web page

0patch Blog: 0patching another 0-day: Internet Explorer 11 Type Confusion (CVE-2017-0037)

https://0patch.blogspot.si/2017/03/0patching-another-0-day-internet.html

Vendor Advisories for CVE-2017-0037(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 264× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,629 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,529 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:26 UTCEPSS rescoreEPSS 80% · 99th percentile
  2. 2026-10-23 06:36 UTCEG score recompute
  3. 2026-10-23 06:36 UTCVendor advisory
  4. 2026-10-23 06:36 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  5. 2026-10-22 06:48 UTCEG score recompute
  6. 2026-10-22 06:48 UTCVendor advisory
  7. 2026-10-22 06:47 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  8. 2026-10-21 16:27 UTCEPSS rescoreEPSS 80% · 99th percentile
  9. 2026-10-21 07:02 UTCEG score recompute
  10. 2026-10-21 07:02 UTCVendor advisory
  11. 2026-10-21 07:01 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  12. 2026-10-20 16:27 UTCEPSS rescoreEPSS 80% · 99th percentile
  13. 2026-10-20 07:15 UTCEG score recompute
  14. 2026-10-20 07:15 UTCVendor advisory
  15. 2026-10-20 07:14 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  16. 2026-10-19 07:26 UTCEG score recompute
  17. 2026-10-19 07:26 UTCVendor advisory
  18. 2026-10-19 07:26 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  19. 2026-10-18 07:39 UTCEG score recompute
  20. 2026-10-18 07:39 UTCVendor advisory
  21. 2026-10-18 07:39 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  22. 2026-10-17 07:53 UTCEG score recompute
  23. 2026-10-17 07:53 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-10-16 08:07 UTCEG score recompute
  25. 2026-10-16 08:07 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
Show 75 more
  1. 2026-10-15 16:26 UTCEPSS rescoreEPSS 80% · 99th percentile
  2. 2026-10-15 08:20 UTCEG score recompute
  3. 2026-10-15 08:20 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  4. 2026-10-14 16:27 UTCEPSS rescoreEPSS 80% · 99th percentile
  5. 2026-10-14 08:34 UTCEG score recompute
  6. 2026-10-14 08:34 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  7. 2026-10-13 16:27 UTCEPSS rescoreEPSS 80% · 99th percentile
  8. 2026-10-13 08:48 UTCVendor advisory
  9. 2026-10-13 08:48 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  10. 2026-10-12 20:38 UTCEG score recompute
  11. 2026-10-12 09:00 UTCVendor advisory
  12. 2026-10-12 09:00 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  13. 2026-10-12 04:41 UTCVendor advisory
  14. 2026-10-12 04:40 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  15. 2026-10-12 00:19 UTCVendor advisory
  16. 2026-10-12 00:19 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  17. 2026-10-11 19:59 UTCEG score recompute
  18. 2026-10-11 19:59 UTCVendor advisory
  19. 2026-10-11 19:59 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  20. 2026-10-11 15:39 UTCEG score recompute
  21. 2026-10-11 15:39 UTCVendor advisory
  22. 2026-10-11 15:39 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  23. 2026-10-11 11:20 UTCEG score recompute
  24. 2026-10-11 11:20 UTCVendor advisory
  25. 2026-10-11 11:20 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  26. 2026-10-11 06:59 UTCVendor advisory
  27. 2026-10-11 06:59 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  28. 2026-10-11 02:40 UTCVendor advisory
  29. 2026-10-11 02:40 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  30. 2026-10-10 22:21 UTCVendor advisory
  31. 2026-10-10 22:21 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  32. 2026-10-10 18:01 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  33. 2026-10-10 13:41 UTCVendor advisory
  34. 2026-10-10 13:41 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  35. 2026-10-10 09:21 UTCVendor advisory
  36. 2026-10-10 09:21 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  37. 2026-10-10 05:03 UTCVendor advisory
  38. 2026-10-10 05:02 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  39. 2026-10-10 00:42 UTCVendor advisory
  40. 2026-10-10 00:42 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  41. 2026-10-09 20:23 UTCEG score recompute
  42. 2026-10-09 20:23 UTCVendor advisory
  43. 2026-10-09 20:22 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  44. 2026-10-09 20:01 UTCEPSS rescoreEPSS 80% · 99th percentile
  45. 2026-10-09 16:04 UTCVendor advisory
  46. 2026-10-09 16:04 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  47. 2026-10-09 11:43 UTCVendor advisory
  48. 2026-10-09 11:43 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  49. 2026-10-09 07:23 UTCVendor advisory
  50. 2026-10-09 07:23 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  51. 2026-10-09 03:03 UTCVendor advisory
  52. 2026-10-09 03:03 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  53. 2026-10-08 22:44 UTCVendor advisory
  54. 2026-10-08 22:44 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  55. 2026-10-08 18:25 UTCVendor advisory
  56. 2026-10-08 18:25 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  57. 2026-10-08 14:05 UTCVendor advisory
  58. 2026-10-08 14:05 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  59. 2026-10-08 09:41 UTCVendor advisory
  60. 2026-10-08 09:41 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  61. 2026-10-08 05:22 UTCVendor advisory
  62. 2026-10-08 05:22 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  63. 2026-10-08 01:02 UTCEG score recompute
  64. 2026-10-08 01:02 UTCVendor advisory
  65. 2026-10-08 01:01 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  66. 2026-10-07 23:40 UTCEPSS rescoreEPSS 80% · 99th percentile
  67. 2026-10-07 20:41 UTCVendor advisory
  68. 2026-10-07 20:41 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  69. 2026-10-07 16:22 UTCVendor advisory
  70. 2026-10-07 16:22 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  71. 2026-10-07 12:00 UTCVendor advisory
  72. 2026-10-07 12:00 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  73. 2026-10-07 07:41 UTCVendor advisory
  74. 2026-10-07 07:41 UTCGHSA enrichmentGHSA-xpg5-jv85-754h · GitHub severity HIGH · GitHub CVSS 8.1
  75. 2026-10-07 03:22 UTCVendor advisory

Publicly available exploits

(3 references)

Public exploit code is referenced for this CVE (3 Exploit-DB entries). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-43125✓ verified
    Published Oct 17, 2017

    Microsoft Internet Explorer 11 (Windows 7 x86) - 'mshtml.dll' Remote Code Execution (MS17-007)

    Open source ↗
  • Exploit-DBEDB-41454✓ verified
    Published Feb 24, 2017

    Microsoft Edge / Internet Explorer - 'HandleColumnBreakOnColumnSpanningElement' Type Confusion

    Open source ↗
  • Exploit-DBEDB-42354
    Published Jul 24, 2017

    Microsoft Internet Explorer - 'mshtml.dll' Remote Code Execution (MS17-007)

    Open source ↗

Frequently asked(6)

What is CVE-2017-0037?
CVE-2017-0037 is a critical-severity vulnerability; its CVE record was published on February 26, 2017. 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…
When was CVE-2017-0037 made public?
CVE-2017-0037 was made public on February 26, 2017: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on February 26, 2017. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2017-0037 actively exploited?
Yes. CISA added CVE-2017-0037 to the Known Exploited Vulnerabilities catalog on March 28, 2022, affecting Microsoft Edge and Internet Explorer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2017-0037?
CVE-2017-0037 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2017-0037?
CVE-2017-0037 affects Microsoft Edge and Internet Explorer.
How do I remediate CVE-2017-0037?
A fix for CVE-2017-0037 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2017-0037 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-0037

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