VYPR
Low severity3.3NVD Advisory· Published Apr 10, 2019· Updated Jun 17, 2026

CVE-2019-6156

CVE-2019-6156

Description

In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). Lenovo was notified that after resuming from S3 sleep mode in various versions of BIOS for Lenovo systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.

Affected products

179

Patches

Vulnerability mechanics

References

1

News mentions

0

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