CVE-2021-42205

MEDIUMNVD 4.74.7—

4.7

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: 30.1%
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.

CWE-703

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 12:34 UTCEG score recompute
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 30.1% 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.

Dependency Blast Radius

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CVE-2021-42205

📅 Published

🔄 Last Modified

🔗 References (2)