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Vulnerability record · CVE-2019-6156 · published 10 April 2019

CVE-2019-6156: Lenovo 510-15ikl firmware vulnerability

Lenovo · 510 15ikl Firmware

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.

3.3 CVSS 3.0 Low EPSS 0.24% · top 86.0% CWE-667 · CWE-667
3.3CVSS 3.0 base score, v2 2.1
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.lenovo.com/solutions/LEN-26332 PatchVendor Advisory
https://support.lenovo.com/solutions/LEN-26332 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-6156), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.