PT-2026-58617 · Microsoft · Windows Network File System+1
CVE-2026-56648
·
Published
2026-07-14
·
Updated
2026-07-14
CVSS v3.1
7.5
High
| Vector | AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Windows Network File System (affected versions not specified)
Description
A time-of-check time-of-use (toctou) race condition exists in the Windows Network File System. This occurs when a program checks the state of a resource before using it, but the state changes between the check and the use. An authorized attacker can exploit this to elevate privileges over a network.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Use After Free
Time Of Check To Time Of Use
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Related Identifiers
Affected Products
Windows
Windows Network File System