CVE-2026-81971CWE-362CWE-416

CVE-2026-81971

High · published October 13, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
10.9
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00212 · 10.9th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-416 · Use After Free
Published
2026-10-13T23:19Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81971 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:00Z
    Windows NTFS Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Windows NTFS Elevation of Privilege Vulnerability
    cvelistv5