CVE-2026-100223: Windows NTFS Elevation of Privilege Vulnerability

Published Nov 10, 2026
·
Updated

An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.

Other sources

Windows NTFS Elevation of Privilege Vulnerability

— Microsoft

Affected Software

28 affected componentsFixes available
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9974, >=10.0.26200<10.0.26200.9911
10.0.26200.997410.0.26200.9911
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9974, >=10.0.26100<10.0.26100.9911
10.0.26100.997410.0.26100.9911
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3501
10.0.28000.3501
Microsoft Windows Server 2025<10.0.26100.33822, <10.0.26100.33730
10.0.26100.3382210.0.26100.33730
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9974, >=10.0.26300<10.0.26300.9911
10.0.26300.997410.0.26300.9911
Microsoft Windows Server 2019<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2025<10.0.26100.33822, <10.0.26100.33730
10.0.26100.3382210.0.26100.33730
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3501
10.0.28000.3501
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9974, >=10.0.26300<10.0.26300.9911
10.0.26300.997410.0.26300.9911
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9974, >=10.0.26200<10.0.26200.9911
10.0.26200.997410.0.26200.9911
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9974, >=10.0.26100<10.0.26100.9911
10.0.26100.997410.0.26100.9911
Microsoft Windows 11=23H2, >=10.0.22631<10.0.22631.7711
10.0.22631.7711
Microsoft Windows 11=23H2, >=10.0.22631<10.0.22631.7711
10.0.22631.7711
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7846
10.0.19045.7846
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2022<10.0.20348.5870
10.0.20348.5870
Microsoft Windows Server 2022<10.0.20348.5870
10.0.20348.5870
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7846
10.0.19045.7846
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7846
10.0.19045.7846
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7846
10.0.19044.7846
Microsoft Windows Server 2019<10.0.17763.9487
10.0.17763.9487
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2016<10.0.14393.9688
10.0.14393.9688
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7846
10.0.19044.7846
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7846
10.0.19044.7846
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9688
10.0.14393.9688
Microsoft Windows Server 2016<10.0.14393.9688
10.0.14393.9688
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9688
10.0.14393.9688

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26200.9974Fixed in 10.0.26200.9911Patch KB5132043
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9974Fixed in 10.0.26100.9911Patch KB5132043
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.28000.3501Patch KB5132059
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.9487Patch KB5131085
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26300.9974Fixed in 10.0.26300.9911Patch KB5132043
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.33822Fixed in 10.0.26100.33730Patch KB5131077
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.22631.7711Patch KB5131087
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.20348.5870Patch KB5131090
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19045.7846Patch KB5131096
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19044.7846Patch KB5131096
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.14393.9688Patch KB5131291

Event History

Nov 10, 2026
CVE Published
via Microsoft·04:00 PM
Data Sourced
via Microsoft·04:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·06:15 PM
Data Sourced
via MITRE·06:15 PM
DescriptionSeverity
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeakness

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