CVE-2026-21231 — Race Condition in Microsoft Windows 10 Version 1607

CWE-362 — Race Condition5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 90.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
23
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+20 more
Timeline
PublishedFeb 10

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HExploitability: 1.1 | Impact: 6.0

Affected Packages23 packages

▶NVDmicrosoft/windows< 10.0.14393.8868+5
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8868
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8389
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6937
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6937

🔴Vulnerability Details

2
CVEList
Windows Kernel Elevation of Privilege Vulnerability↗2026-02-10
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GHSA
GHSA-25h5-vgq2-336r: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate↗2026-02-10
▶

📋Vendor Advisories

1
Microsoft
Windows Kernel Elevation of Privilege Vulnerability↗2026-02-10
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-21231 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-21231 — Race Condition in Microsoft | cvebase