CVE-2026-83839EPSS p8.4%

CVE-2026-83839CVE-2026-83839

Description

Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

Scoring

CVSS 7.0 ()
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.19% probability of exploitation · percentile 8.4% · 2026-10-16T12:02:51Z
Last modified2026-10-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.