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Description

Time-of-check time-of-use (toctou) race condition in NtQueryInformation Token function (ntifs.h) allows an authorized attacker to elevate privileges locally.

PUBLISHED Reserved 2025-08-13 | Published 2025-10-14 | Updated 2025-11-22 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-822: Untrusted Pointer Dereference

Product status

10.0.17763.0 (custom) before 10.0.17763.7919
affected

10.0.17763.0 (custom) before 10.0.17763.7919
affected

10.0.17763.0 (custom) before 10.0.17763.7919
affected

10.0.20348.0 (custom) before 10.0.20348.4294
affected

10.0.19044.0 (custom) before 10.0.19044.6456
affected

10.0.22621.0 (custom) before 10.0.22621.6060
affected

10.0.19045.0 (custom) before 10.0.19045.6456
affected

10.0.26100.0 (custom) before 10.0.26100.6899
affected

10.0.22631.0 (custom) before 10.0.22631.6060
affected

10.0.22631.0 (custom) before 10.0.22631.6060
affected

10.0.25398.0 (custom) before 10.0.25398.1913
affected

10.0.26100.0 (custom) before 10.0.26100.6899
affected

10.0.26100.0 (custom) before 10.0.26100.6899
affected

10.0.26200.0 (custom) before 10.0.26200.6899
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55696 (NtQueryInformation Token function (ntifs.h) Elevation of Privilege Vulnerability) vendor-advisory

cve.org (CVE-2025-55696)

nvd.nist.gov (CVE-2025-55696)

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