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Case File

CVE-2010-0306

MEDIUM · CVSS 4.1 EPSS 0.38%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2010-02-12 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.1. It may lead to a denial-of-service condition.

CVE
CVE-2010-0306
Severity
MEDIUM
CVSS
4.1
EPSS
0.38%

Original NVD Description

The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.