CVE-2026-71347: Windows Security Center Elevation of Privilege Vulnerability

Severity: high (CVSS 7.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-13 · updated 2026-10-31
Weakness: CWE-362

Description

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

Affected products

Microsoft Windows 10 1607: before 10.0.14393.9612 — fixed in 10.0.14393.9612
Microsoft Windows 10: before 10.0.17763.9376 — fixed in 10.0.17763.9376
Microsoft Windows 10: before 10.0.19044.7807 — fixed in 10.0.19044.7807
Microsoft Windows 10: before 10.0.19045.7807 — fixed in 10.0.19045.7807
Microsoft Windows 11: before 10.0.22631.7652 — fixed in 10.0.22631.7652
Microsoft Windows 11: before 10.0.26100.9711 — fixed in 10.0.26100.9711
Microsoft Windows 11 25H2: before 10.0.26200.9711 — fixed in 10.0.26200.9711
Microsoft Windows 11 version 26H1: before 10.0.28000.3231 — fixed in 10.0.28000.3231
Microsoft Windows 11 26H2: before 10.0.26300.9711 — fixed in 10.0.26300.9711
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.9612 — fixed in 10.0.14393.9612
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.9376 — fixed in 10.0.17763.9376
Microsoft Windows 10: from 10.0.19044.0 before 10.0.19044.7807 — fixed in 10.0.19044.7807
Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.7807 — fixed in 10.0.19045.7807
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.7652 — fixed in 10.0.22631.7652
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.9711 — fixed in 10.0.26100.9711
Microsoft Windows 11 25H2: from 10.0.26200.0 before 10.0.26200.9711 — fixed in 10.0.26200.9711
Microsoft Windows 11 version 26H1: from 10.0.28000.0 before 10.0.28000.3231 — fixed in 10.0.28000.3231
Microsoft Windows 11 26H2: from 10.0.26300.0 before 10.0.26300.9711 — fixed in 10.0.26300.9711

How to fix

Upgrade to a fixed version: Microsoft Windows 10 1607 10.0.14393.9612; Microsoft Windows 10 10.0.17763.9376; Microsoft Windows 10 10.0.19044.7807; Microsoft Windows 10 10.0.19045.7807; Microsoft Windows 11 10.0.22631.7652; Microsoft Windows 11 10.0.26100.9711; Microsoft Windows 11 25H2 10.0.26200.9711; Microsoft Windows 11 version 26H1 10.0.28000.3231; Microsoft Windows 11 26H2 10.0.26300.9711; Microsoft Windows 10 1607 10.0.14393.9612; Microsoft Windows 10 10.0.17763.9376; Microsoft Windows 10 10.0.19044.7807. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71347

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