VULNERABILITY INTELLIGENCE

CVE-2010-0306

CVSS score4.1 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2010-02-12
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:S/C:P/I:P/A:P

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.

Primary references