What is the CVSS score of CVE-2018-12126?

CVE-2018-12126 has a CVSS 3.1 base score of 5.6 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N. EPSS exploitation probability: 0.6%.

Microarchitectural Store Buffer Data Sampling Firmware CVE-2018-12126

MEDIUM

Information Exposure (CWE-200)

2019-05-30 secure@intel.com

Information Disclosure Intel Microarchitectural Store Buffer Data Sampling Firmware Fedora

5.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.6 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

May 30, 2019 - 16:29 cve.org

MEDIUM 5.6

DescriptionCVE.org

Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

AnalysisAI

Technical ContextAI

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf Affected products include: Intel Microarchitectural Store Buffer Data Sampling Firmware, Fedoraproject Fedora.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.