CVE-2015-2419

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

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 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
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)
CISA-KEV: ExploitedEPSS PROB: 53%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

JScript 9 in Microsoft Internet Explorer 10 and 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "JScript9 Memory Corruption Vulnerability."

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
53%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

July 14, 2015

Last Modified

April 22, 2026

Advisory Details (2)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 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-2015-2419
generic

Microsoft Security Bulletin MS15-065 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-065

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 54× in last 7d / 220× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 820 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-44743
    First seen Feb 1, 2016

    Microsoft Internet Explorer 11 - javascript Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2015-2419?
CVE-2015-2419 is a critical vulnerability published on July 14, 2015. JScript 9 in Microsoft Internet Explorer 10 and 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "JScript9 Memory Corruption Vulnerability."
When was CVE-2015-2419 disclosed?
CVE-2015-2419 was first published in the National Vulnerability Database on July 14, 2015, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-2419 actively exploited?
Yes. CISA added CVE-2015-2419 to the Known Exploited Vulnerabilities catalog on March 28, 2022, affecting Microsoft Internet Explorer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2015-2419?
CVE-2015-2419 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2015-2419?
CVE-2015-2419 affects Microsoft Internet Explorer. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2015-2419?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-2419, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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