CVE-2018-12126: Fedoraproject Fedora

Medium severity, CVSS 5.6. EPSS: 1.5% chance of exploitation in the next 30 days.

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

• Fedoraproject Fedora: version 29 only
• Intel Microarchitectural Store Buffer Data Sampling Firmware: affected versions not specified

Published 2019-05-30. Last modified 2026-06-17.