The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
Published 2014-10-02 14:55:05
Updated 2018-10-30 16:27:35
Source MITRE
View at NVD,
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2014-7155

Probability of exploitation activity in the next 30 days EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2014-7155

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

CWE ids for CVE-2014-7155

  • Assigned by: (Primary)

References for CVE-2014-7155

Products affected by CVE-2014-7155

This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to terms of use!