CVE-2019-1367

CRITICALNVD 7.59.0
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 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 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 7.5 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
Exploited in the wild

Also known asEUVD-2019-9924 (ENISA EUVD) · GHSA-5786-v8v7-87fq (GitHub Security Advisories)Source: ENISA EUVD

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: 52%CVSS: 7.5Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1221.

CVSS v3
7.5
EG Score
9.0CRITICALhigh confidence
EG Risk
74
EG Risk 74/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 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
52%
EPSS %ILE
98th
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 7.5 HIGH.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
52% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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, and whom BOD 26-04 binds: 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.

The score's inputs: 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-2019-1367

Published

September 23, 2019

Last Modified

October 29, 2025

Advisory Details (2)

Auto-updated Nov 13, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available. Sources: cisa, microsoft.
CISA🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1367
Microsoft

Security Update Guide - Microsoft Security Response Center

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1367

Vendor Advisories for CVE-2019-1367(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 0× in last 7d / 0× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-12 19:02 UTCEchelonGraph re-scored
  2. 2026-11-12 19:02 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-11-12 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  4. 2026-11-11 17:00 UTCEchelonGraph re-scored
  5. 2026-11-11 17:00 UTCVendor advisory
  6. 2026-11-11 17:00 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-11-11 16:30 UTCEPSS rescoreEPSS 52% · 98th percentile
  8. 2026-11-10 16:33 UTCEPSS rescoreEPSS 52% · 98th percentile
  9. 2026-11-10 14:58 UTCEchelonGraph re-scored
  10. 2026-11-10 14:58 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-11-09 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  12. 2026-11-09 12:56 UTCEchelonGraph re-scored
  13. 2026-11-09 12:56 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-11-08 10:54 UTCEchelonGraph re-scored
  15. 2026-11-08 10:54 UTCVendor advisory
  16. 2026-11-08 10:54 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-11-07 16:32 UTCEPSS rescoreEPSS 52% · 98th percentile
  18. 2026-11-07 08:52 UTCEchelonGraph re-scored
  19. 2026-11-07 08:52 UTCVendor advisory
  20. 2026-11-07 08:52 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-11-06 16:29 UTCEPSS rescoreEPSS 52% · 98th percentile
  22. 2026-11-06 06:49 UTCEchelonGraph re-scored
  23. 2026-11-06 06:49 UTCVendor advisory
  24. 2026-11-06 06:49 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-11-05 16:29 UTCEPSS rescoreEPSS 52% · 98th percentile
Show 75 more
  1. 2026-11-05 04:47 UTCEchelonGraph re-scored
  2. 2026-11-05 04:47 UTCVendor advisory
  3. 2026-11-05 04:47 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-11-04 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  5. 2026-11-04 02:45 UTCEchelonGraph re-scored
  6. 2026-11-04 02:45 UTCVendor advisory
  7. 2026-11-04 02:45 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-11-03 16:35 UTCEPSS rescoreEPSS 52% · 98th percentile
  9. 2026-11-03 00:43 UTCEchelonGraph re-scored
  10. 2026-11-03 00:43 UTCVendor advisory
  11. 2026-11-03 00:43 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  12. 2026-11-01 22:40 UTCEchelonGraph re-scored
  13. 2026-11-01 22:40 UTCVendor advisory
  14. 2026-11-01 22:40 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-31 20:39 UTCEchelonGraph re-scored
  16. 2026-10-31 20:39 UTCVendor advisory
  17. 2026-10-31 20:38 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  18. 2026-10-31 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  19. 2026-10-30 18:37 UTCEchelonGraph re-scored
  20. 2026-10-30 18:37 UTCVendor advisory
  21. 2026-10-30 18:37 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-10-30 16:29 UTCEPSS rescoreEPSS 52% · 98th percentile
  23. 2026-10-29 16:35 UTCEchelonGraph re-scored
  24. 2026-10-29 16:35 UTCVendor advisory
  25. 2026-10-29 16:35 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  26. 2026-10-29 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  27. 2026-10-28 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  28. 2026-10-28 14:33 UTCEchelonGraph re-scored
  29. 2026-10-28 14:33 UTCVendor advisory
  30. 2026-10-28 14:33 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-10-27 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  32. 2026-10-27 12:28 UTCEchelonGraph re-scored
  33. 2026-10-27 12:28 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-10-26 10:26 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  35. 2026-10-25 19:08 UTCEchelonGraph re-scored
  36. 2026-10-25 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  37. 2026-10-25 08:25 UTCEchelonGraph re-scored
  38. 2026-10-25 08:25 UTCVendor advisory
  39. 2026-10-25 08:25 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  40. 2026-10-24 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  41. 2026-10-24 06:23 UTCEchelonGraph re-scored
  42. 2026-10-24 06:22 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-10-23 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  44. 2026-10-23 04:20 UTCEchelonGraph re-scored
  45. 2026-10-23 04:20 UTCVendor advisory
  46. 2026-10-23 04:20 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-22 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  48. 2026-10-22 02:18 UTCEchelonGraph re-scored
  49. 2026-10-22 02:18 UTCVendor advisory
  50. 2026-10-22 02:18 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-10-21 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  52. 2026-10-21 00:16 UTCEchelonGraph re-scored
  53. 2026-10-21 00:16 UTCVendor advisory
  54. 2026-10-21 00:15 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-10-20 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  56. 2026-10-19 22:11 UTCEchelonGraph re-scored
  57. 2026-10-19 22:11 UTCVendor advisory
  58. 2026-10-19 22:11 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-10-19 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  60. 2026-10-18 20:06 UTCEchelonGraph re-scored
  61. 2026-10-18 20:06 UTCVendor advisory
  62. 2026-10-18 20:06 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-10-18 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  64. 2026-10-18 09:54 UTCEchelonGraph re-scored
  65. 2026-10-17 18:03 UTCEchelonGraph re-scored
  66. 2026-10-17 18:03 UTCVendor advisory
  67. 2026-10-17 18:03 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-10-17 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile
  69. 2026-10-16 16:31 UTCEPSS rescoreEPSS 52% · 98th percentile
  70. 2026-10-16 16:01 UTCEchelonGraph re-scored
  71. 2026-10-16 16:01 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-10-15 16:27 UTCEPSS rescoreEPSS 52% · 98th percentile
  73. 2026-10-15 13:59 UTCEchelonGraph re-scored
  74. 2026-10-15 13:59 UTCGHSA enrichmentGHSA-5786-v8v7-87fq · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-10-14 16:28 UTCEPSS rescoreEPSS 52% · 98th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCmandarenmanman/CVE-2019-1367
    Published Sep 24, 2019

    CVE-2019-1367

    Open source ↗

Frequently asked(6)

What is CVE-2019-1367?
CVE-2019-1367 is a critical-severity vulnerability; its CVE record was published on September 23, 2019. A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1221.
When was the CVE record for CVE-2019-1367 published?
The CVE record for CVE-2019-1367 was published on September 23, 2019. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 29, 2025; the record at its source may have been updated since.
Is CVE-2019-1367 actively exploited?
Yes. CISA added CVE-2019-1367 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Microsoft 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-2019-1367?
CVE-2019-1367 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2019-1367?
CVE-2019-1367 affects Microsoft Internet Explorer.
How do I remediate CVE-2019-1367?
A fix for CVE-2019-1367 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-1367 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2019-1367

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