SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-38080

Microsoft Windows Hyper-V Privilege Escalation Vulnerability

KEVHIGH 7.8EPSS 7.06%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 30 July 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Windows Hyper-V Elevation of Privilege Vulnerability

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
7.06% probability · 94th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 9 July 2024 · due 30 July 2024
Weakness
CWE-190
Affected
microsoft/windows 11 21h2 · microsoft/windows 11 22h2 · microsoft/windows 11 23h2 · microsoft/windows server 2022 · microsoft/windows server 2022 23h2
Source
secure@microsoft.com
EPSS trend
0%5%10%30 October 2026: 7.06%30 October 202630 October 2026

EPSS 7.1% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-38080; https://nvd.nist.gov/vuln/detail/CVE-2024-38080

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