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CVE-2008-3431

HighPublished

Oracle VirtualBox Insufficient Input Validation Vulnerability

Published: Aug 5, 2008
Updated: Oct 22, 2025
Assigning CNA: mitre
Evidence observed: Aug 10, 2008

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

6.9%

Low · next 30 days

Percentile: 93.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

The VBoxDrvNtDeviceControl function in VBoxDrv.sys in Sun xVM VirtualBox before 1.6.4 uses the METHOD_NEITHER communication method for IOCTLs and does not properly validate a buffer associated with the Irp object, which allows local users to gain privileges by opening the \\.\VBoxDrv device and calling DeviceIoControl to send a crafted kernel address.

Sources

Sun xVM VirtualBox < 1.6.4 - Privilege Escalation (PoC)Exploit
Core Security · multiple · Aug 10, 2008

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