CVE-2026-20808 PUBLISHED

Windows File Explorer Elevation of Privilege Vulnerability

Assigner: microsoft
Reserved: 03.12.2025 Published: 13.01.2026 Updated: 01.04.2026

Concurrent execution using shared resource with improper synchronization ('race condition') in Printer Association Object allows an authorized attacker to elevate privileges locally.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS Score: 7

Product Status

Vendor Microsoft
Product Windows 11 Version 24H2
Versions
  • affected from 10.0.26100.0 to 10.0.26100.7623 (excl.)
Vendor Microsoft
Product Windows 11 Version 25H2
Versions
  • affected from 10.0.26200.0 to 10.0.26200.7623 (excl.)
Vendor Microsoft
Product Windows Server 2022, 23H2 Edition (Server Core installation)
Versions
  • affected from 10.0.25398.0 to 10.0.25398.2092 (excl.)
Vendor Microsoft
Product Windows Server 2025
Versions
  • affected from 10.0.26100.0 to 10.0.26100.32230 (excl.)
Vendor Microsoft
Product Windows Server 2025 (Server Core installation)
Versions
  • affected from 10.0.26100.0 to 10.0.26100.32230 (excl.)

References

Problem Types