CVE-2026-56648CWE-367CWE-416

Windows NFS Server Elevation of Privilege Vulnerability

High · published July 14, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
42.5
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00509 · 42.5th percentile
Weaknesses
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition; CWE-416 · Use After Free
Published
2026-07-14T17:09Z
EPSS history
Timeline
  • 14 JUL 17:09Z
    Windows NFS Server Elevation of Privilege Vulnerability
    cvelistv5