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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-105733

Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.

HIGH 8.8EPSS 0.38%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
0.38% probability · 31th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Source
secure@microsoft.com
EPSS trend
0%3%5%14 October 2026: 0.33%27 October 2026: 0.38%14 October 202627 October 2026

EPSS moved from 0.3% on 14 October 2026 to 0.4% on 27 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.