CVE-2024-21412

CRITICALNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-02-13), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 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: 95%CVSS: 8.1Exploit: cisa kev · ssvc active · kev ransomware · 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.

Internet Shortcut Files Security Feature Bypass Vulnerability

CVSS v3
8.1
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
95%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

February 13, 2024

Last Modified

August 10, 2026

Advisory Details (2)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, 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-2024-21412
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21412

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 93× in last 7d / 383× 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 1,377 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • GitHub PoClsr00ter/CVE-2024-21412_Water-Hydra
    First seen Mar 21, 2024

    POC code according to trendmicro's research

    Open source ↗

Frequently asked(6)

What is CVE-2024-21412?
CVE-2024-21412 is a critical vulnerability published on February 13, 2024. Internet Shortcut Files Security Feature Bypass Vulnerability
When was CVE-2024-21412 disclosed?
CVE-2024-21412 was first published in the National Vulnerability Database on February 13, 2024, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-21412 actively exploited?
Yes. CISA added CVE-2024-21412 to the Known Exploited Vulnerabilities catalog on February 13, 2024, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2024-21412?
CVE-2024-21412 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.
Which products are affected by CVE-2024-21412?
CVE-2024-21412 affects Microsoft Windows. 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-2024-21412?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-21412, 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

Explore the affected products and dependency analysis for CVE-2024-21412

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