CVE-2018-12126

—

CVSS 3.1

5.6 medium

EPSS

2%p73

Published

May 30, 2019 (May 30, 2019)

Modified

Jun 17, 2026

Description

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

Vendors: intel fedoraproject
Products: microarchitectural store buffer data sampling firmware, fedora
Weakness: CWE-200
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.5%)

In the news2 stories

Millions of computers powered by Intel chips are affected by a MDS flaws

Security AffairsMay 14, 23:30 UTC · May 14, 2019Exploit / PoC CVE-2018-12126 CVE-2018-12130 CVE-2018-12127+1 CVEs

New Class of CPU Flaws Affect Almost Every Intel Processor Since 2011

The Hacker NewsMay 15, 00:00 UTC · May 15, 2019Exploit / PoC CVE-2018-12126 CVE-2018-12130 CVE-2018-12127+1 CVEs