CVE-2026-20853 — Race Condition in Microsoft Windows 10 Version 1607

CWE-362 — Race Condition5 documents5 sources
Severity
7.4HIGHNVD
EPSS
0.0%
top 93.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
15
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+12 more
Timeline
PublishedJan 13

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 1.4 | Impact: 5.9

Affected Packages15 packages

▶NVDmicrosoft/windows_10_1607< 10.0.14393.8783
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809
▶NVDmicrosoft/windows_11_23h2< 10.0.22631.6491

🔴Vulnerability Details

2
GHSA
GHSA-frcp-54w2-rvj7: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService allows an unauthorized attacker t↗2026-01-13
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CVEList
Windows WalletService Elevation of Privilege Vulnerability↗2026-01-13
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📋Vendor Advisories

1
Microsoft
Windows WalletService Elevation of Privilege Vulnerability↗2026-01-13
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🕵️Threat Intelligence

1
Wiz
CVE-2026-20853 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-20853 — Race Condition in Microsoft | cvebase