CVE-2026-21234 — Race Condition in Microsoft Windows 10 Version 1809

CWE-362 — Race Condition5 documents5 sources
Severity
7.0HIGHNVD
EPSS
0.0%
top 90.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
18
Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2Microsoft Windows 10 Version 22h2+15 more
Timeline
PublishedFeb 10

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages18 packages

▶NVDmicrosoft/windows< 10.0.17763.8389+3
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8389
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6937
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6937
▶NVDmicrosoft/windows_11_23h2< 10.0.22631.6649

🔴Vulnerability Details

2
GHSA
GHSA-545g-3772-4wwv: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an au↗2026-02-10
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CVEList
Windows Connected Devices Platform Service Elevation of Privilege Vulnerability↗2026-02-10
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📋Vendor Advisories

1
Microsoft
Windows Connected Devices Platform Service Elevation of Privilege Vulnerability↗2026-02-10
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🕵️Threat Intelligence

1
Wiz
CVE-2026-21234 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-21234 — Race Condition in Microsoft | cvebase