CVE-2019-6156

LOWNVD 3.33.3—
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2022-05-13. NVD baseline CVSS 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
3.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
3.3
EG Score
3.3(medium)
EPSS
15.1%
KEV
Not listed

Published

April 10, 2019

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:05 UTCEPSS rescore
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  62. 2026-05-27 20:42 UTCEG score recompute
  63. 2026-05-27 20:42 UTCGHSA enrichment
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Frequently asked(5)

What is CVE-2019-6156?
CVE-2019-6156 is a low vulnerability published on April 10, 2019. 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…
When was CVE-2019-6156 disclosed?
CVE-2019-6156 was first published in the National Vulnerability Database on April 10, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-6156 actively exploited?
CVE-2019-6156 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-6156?
CVE-2019-6156 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2019-6156?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-6156, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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