HarborGuard / CVE
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HIGHCVE-2026-26184Published Modified CNA microsoft

CVE-2026-26184: Windows Projected File System Elevation of Privilege Vulnerability

Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

Metrics

CVSS v3.1
7.8
Severity
HIGH
Fixed in
10.0.17763.8644
Affected Products
14

Fix available

10.0.17763.864410.0.19044.718410.0.19045.718410.0.20348.502010.0.22631.693610.0.25398.227410.0.26100.824610.0.26100.3269010.0.26200.824610.0.28000.1836
Patch commits
Affected packages
  • Microsoft / Windows 10 Version 1809
    < 10.0.17763.8644 (from 10.0.17763.0)
  • Microsoft / Windows 10 Version 21H2
    < 10.0.19044.7184 (from 10.0.19044.0)
  • Microsoft / Windows 10 Version 22H2
    < 10.0.19045.7184 (from 10.0.19045.0)
  • Microsoft / Windows 11 version 22H3
    < 10.0.22631.6936 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 23H2
    < 10.0.22631.6936 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 24H2
    < 10.0.26100.8246 (from 10.0.26100.0)
  • Microsoft / Windows 11 Version 25H2
    < 10.0.26200.8246 (from 10.0.26200.0)
  • Microsoft / Windows 11 version 26H1
    < 10.0.28000.1836 (from 10.0.28000.0)
  • Microsoft / Windows Server 2019
    < 10.0.17763.8644 (from 10.0.17763.0)
  • Microsoft / Windows Server 2019 (Server Core installation)
    < 10.0.17763.8644 (from 10.0.17763.0)
  • Microsoft / Windows Server 2022
    < 10.0.20348.5020 (from 10.0.20348.0)
  • Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)
    < 10.0.25398.2274 (from 10.0.25398.0)
  • Microsoft / Windows Server 2025
    < 10.0.26100.32690 (from 10.0.26100.0)
  • Microsoft / Windows Server 2025 (Server Core installation)
    < 10.0.26100.32690 (from 10.0.26100.0)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References