Actively exploited · Published Jul 9, 2024 · Assigned by microsoft

CVE-2024-38080Windows Hyper-V Elevation of Privilege Vulnerability

High 7.8 Exploited

In plain English

A high-severity integer overflow in Windows 11 version 21H2 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on July 9, 2024). The chance it is exploited in the next 30 days is estimated at 7.1% (higher than 94% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)7.1%top 5.8% of all CVEs
Exploited in the wildYesCISA KEV since Jul 9, 2024
Attack tooling1Public PoC

CISA guidance

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Federal agencies must remediate by Jul 30, 2024.

Official description

Windows Hyper-V Elevation of Privilege Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.2582
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22000.3079
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.3880
Microsoft Windows 11 version 22H3 10.0.22631.0 – before 10.0.22631.3880
Microsoft Windows 11 Version 23H2 10.0.22631.0 – before 10.0.22631.3880
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – before 10.0.25398.1009

Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References