Description

Time-of-check time-of-use (toctou) race condition in Windows Network File System allows an authorized attacker to elevate privileges over a network.

Severity (CVSS)

Base score7.5
SeverityHigh
VersionCVSS 3.1
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Provided byCNA

Weaknesses

  • CWE-367 — CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-416 — CWE-416: Use After Free

Affected products

VendorProductVersions
MicrosoftWindows 10 Version 160710.0.14393.0 to <10.0.14393.9339
MicrosoftWindows 10 Version 180910.0.17763.0 to <10.0.17763.9020
MicrosoftWindows 10 Version 21H210.0.19044.0 to <10.0.19044.7548
MicrosoftWindows 10 Version 22H210.0.19045.0 to <10.0.19045.7548
MicrosoftWindows 11 Version 24H210.0.26100.0 to <10.0.26100.8875
MicrosoftWindows 11 Version 25H210.0.26200.0 to <10.0.26100.8875
MicrosoftWindows 11 version 26H110.0.28000.0 to <10.0.28000.2525
MicrosoftWindows Server 20126.2.9200.0 to <6.2.9200.26226
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to <6.2.9200.26226
MicrosoftWindows Server 2012 R26.3.9600.0 to <6.3.9600.23291
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to <6.3.9600.23291
MicrosoftWindows Server 201610.0.14393.0 to <10.0.14393.9339
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to <10.0.14393.9339
MicrosoftWindows Server 201910.0.17763.0 to <10.0.17763.9020
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to <10.0.17763.9020
MicrosoftWindows Server 202210.0.20348.0 to <10.0.20348.5386
MicrosoftWindows Server 202510.0.26100.0 to <10.0.26100.33158
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to <10.0.26100.33158

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 15 Jul 2026 07:06 UTC.