All vulnerabilities
CVE-2026-83706

Windows NTFS Elevation of Privilege Vulnerability

Microsoft Windows 11 Version 24H2Operating systems
Open in ThreatlineRecord JSON
CVSS
6.7Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.33%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.26100.9445Also 10.0.26200.9445, 10.0.28000.2954 and 1 moreCVE List
Published13 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 10.0.26100.9445Windows 11 Version 24H2CVE List
  • 10.0.26200.9445Windows 11 Version 25H2CVE List
  • 10.0.28000.2954Windows 11 version 26H1CVE List
  • 10.0.26100.33438Windows Server 2025CVE List
  • 10.0.26100.33438Windows Server 2025 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.

Text from CVE List

Affected versions 5

  • Windows 11 Version 24H2affected: 10.0.26100.0 before 10.0.26100.9445CVE List
  • Windows 11 Version 25H2affected: 10.0.26200.0 before 10.0.26200.9445CVE List
  • Windows 11 version 26H1affected: 10.0.28000.0 before 10.0.28000.2954CVE List
  • Windows Server 2025affected: 10.0.26100.0 before 10.0.26100.33438CVE List
  • Windows Server 2025 (Server Core installation)affected: 10.0.26100.0 before 10.0.26100.33438CVE List

References 1