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Case File

CVE-2009-1242

MEDIUM · CVSS 4.9 EPSS 0.47%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-04-06 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2009-1242
Severity
MEDIUM
CVSS
4.9
EPSS
0.47%
Linux

Original NVD Description

The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform allows guest OS users to cause a denial of service (OOPS) by setting the EFER_LME (aka "Long mode enable") bit in the Extended Feature Enable Register (EFER) model-specific register, which is specific to the x86_64 platform.