CVE-2026-62880: Windows NTFS Elevation of Privilege Vulnerability

Published Aug 11, 2026
·
Updated

Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

Other sources

Windows NTFS Elevation of Privilege Vulnerability

— Microsoft

Affected Software

30 affected componentsFixes available
Microsoft Windows Server 2012 R2<6.3.9600.23337
6.3.9600.23337
Microsoft Windows Server 2012 R2<6.3.9600.23337
6.3.9600.23337
Microsoft Windows Server 2012<6.2.9200.26279
6.2.9200.26279
Microsoft Windows Server 2012<6.2.9200.26279
6.2.9200.26279
Microsoft Windows Server 2016<10.0.14393.9418
10.0.14393.9418
Microsoft Windows 10=1607
10.0.14393.9418
Microsoft Windows Server 2016<10.0.14393.9418
10.0.14393.9418
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 10=1607
10.0.14393.9418
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows Server 2022<10.0.20348.5499, <10.0.20348.5440
10.0.20348.549910.0.20348.5440
Microsoft Windows 11=24H2
10.0.26100.916810.0.26000.9106
Microsoft Windows Server 2019<10.0.17763.9115
10.0.17763.9115
Microsoft Windows 10=1809
10.0.17763.9115
Microsoft Windows Server 2019<10.0.17763.9115
10.0.17763.9115
Microsoft Windows 11=24H2
10.0.26100.916810.0.26100.9106
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows Server 2025<10.0.26100.33296, <10.0.26100.33222
10.0.26100.3329610.0.26100.33222
Microsoft Windows 11=23H2
10.0.22631.7517
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=22H2
10.0.19045.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 10=21H2
10.0.19044.7663
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 10=1809
10.0.17763.9115

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 6.2.9200.26279Patch KB5120385
  2. Upgrade

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

    Fixed in 6.3.9600.23337Patch KB5120386
  3. Upgrade

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

    Fixed in 10.0.14393.9418Patch KB5120418
  4. Upgrade

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

    Fixed in 10.0.28000.2704Patch KB5121000
  5. Upgrade

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

    Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229
  6. Upgrade

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

    Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228
  7. Upgrade

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

    Fixed in 10.0.17763.9115Patch KB5120238
  8. Upgrade

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

    Fixed in 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994
  9. Upgrade

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

    Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994
  10. Upgrade

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

    Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994
  11. Upgrade

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

    Fixed in 10.0.22631.7517Patch KB5120240
  12. Upgrade

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

    Fixed in 10.0.19045.7663Patch KB5120249
  13. Upgrade

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

    Fixed in 10.0.19044.7663Patch KB5120249

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-62880?

CVE-2026-62880 has a severity rating of 7.8, categorized as high.

2

How does CVE-2026-62880 affect Windows NTFS?

CVE-2026-62880 allows an authorized attacker to exploit an out-of-bounds read to elevate privileges locally.

3

Which operating systems are impacted by CVE-2026-62880?

CVE-2026-62880 affects Microsoft Windows 10, Windows 11, and multiple versions of Windows Server.

4

What is the risk level associated with CVE-2026-62880?

The risk level for CVE-2026-62880 is rated at 69, indicating a significant threat.

5

How can I mitigate CVE-2026-62880?

It's recommended to apply patches provided by Microsoft to mitigate CVE-2026-62880.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203