CVE-2021-42205

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

Score 4.7 from GitHub Security Advisory published 2022-11-07. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.7Exploit: NoneExposed: 0

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

ELAN Miniport touchpad Windows driver before 24.21.51.2, as used in PC hardware from multiple manufacturers, allows local users to cause a system crash by sending a certain IOCTL request, because that request is handled twice.

CVSS v3
4.7
EG Score
4.7(medium)
EPSS
17.1%
KEV
Not listed

Published

November 7, 2022

Last Modified

May 2, 2025

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 48× 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.

  1. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-11 08:25 UTCEPSS rescore
  3. 2026-07-09 19:07 UTCEPSS rescore
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  14. 2026-07-02 16:57 UTCEPSS rescore
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  16. 2026-06-30 23:20 UTCEPSS rescore
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  5. 2026-06-22 14:24 UTCEPSS rescore
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  7. 2026-06-21 01:58 UTCEPSS rescore
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  9. 2026-06-19 19:24 UTCEPSS rescore
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  11. 2026-06-18 17:51 UTCEPSS rescore
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  24. 2026-06-11 13:58 UTCEPSS rescore
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  26. 2026-06-10 22:16 UTCEPSS rescore
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  44. 2026-05-31 22:29 UTCEPSS rescore
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  46. 2026-05-31 00:15 UTCEPSS rescore
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  48. 2026-05-29 13:42 UTCEPSS rescore
  49. 2026-05-28 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 13:39 UTCEPSS rescore
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  53. 2026-05-26 13:42 UTCEPSS rescore
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  55. 2026-05-26 07:17 UTCEPSS rescore
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  57. 2026-05-26 07:17 UTCEPSS rescore
  58. 2026-05-25 12:34 UTCEG score recompute
  59. 2026-05-25 12:34 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-42205?
CVE-2021-42205 is a medium vulnerability published on November 7, 2022. ELAN Miniport touchpad Windows driver before 24.21.51.2, as used in PC hardware from multiple manufacturers, allows local users to cause a system crash by sending a certain IOCTL request, because that request is handled twice.
When was CVE-2021-42205 disclosed?
CVE-2021-42205 was first published in the National Vulnerability Database on November 7, 2022, with the most recent update on May 2, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-42205 actively exploited?
CVE-2021-42205 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-42205?
CVE-2021-42205 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2021-42205?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42205, 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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