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CVE-2024-21338Windows Kernel Elevation of Privilege Vulnerability

Windows Kernel Elevation of Privilege Vulnerability

7.8 HIGHEPSS 59.81%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-08-10 17:52 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: microsoft (CNA)
NVD status: Analyzed
Published: Feb 13, 2024
Assigner: microsoft

Affected

Windows 10 Version 1809 (Microsoft)

Versions: 10.0.17763.0 before 10.0.17763.5458
Fixed in: 10.0.17763.5458

+11 more products →

Exploitation

Public exploit: Yes · 3 references
CISA KEV: Listed · Mar 4, 2024
KEV due date: Mar 25, 2024
Ransomware use: Known
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

59.81%chance of exploitation in 30 days

Higher than 99.13% of CVEs

CVSS 3.1 · microsoft (CNA)

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · microsoft (CNA)

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

NVD status: Analyzed

Overview Affected Products References

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1microsoft (CNA)	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8	HIGH	3.1microsoft (CNA)	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CISA required action

⚡ Known exploited · remediation due Mar 25, 2024

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Details

CVE ID: CVE-2024-21338
Status: Analyzed
Assigner (CNA): microsoft
Published: Feb 13, 2024
Last modified: 2026-08-10 17:52 UTC
Weaknesses: CWE-822 · Untrusted Pointer Dereference

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 13:35 UTC.