CVE-2015-2419

HIGHNVD 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
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 45%CVSS: 8.8Exploit: NoneExposed: 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
98.6%
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 56× in last 7d / 215× 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 413 total refreshes for this CVE.

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

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