CVE-2020-8333

MEDIUMNVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.4 under NVD CVSS v3. EPSS exploit probability: 0.3% (24th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStation models may allow arbitrary code execution

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity64% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
24th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2020

Last Modified

November 21, 2024

References (2)

Data Freshness Timeline

(refreshed 8× in last 7d / 25× 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.

Showing the most recent 100 of 161 total refreshes for this CVE.

  1. 2026-10-05 17:40 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
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  6. 2026-10-01 19:46 UTCEPSS rescore
  7. 2026-09-30 15:24 UTCEG score recompute
  8. 2026-09-30 14:59 UTCEPSS rescore
  9. 2026-09-27 13:41 UTCEPSS rescore
  10. 2026-09-26 15:54 UTCEPSS rescore
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  1. 2026-09-05 15:25 UTCEPSS rescore
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  7. 2026-08-30 19:14 UTCEPSS rescore
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  9. 2026-08-28 21:37 UTCEPSS rescore
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  20. 2026-08-13 21:57 UTCEPSS rescore
  21. 2026-08-12 13:47 UTCEPSS rescore
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  23. 2026-08-08 16:33 UTCEPSS rescore
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  37. 2026-07-23 14:15 UTCEPSS rescore
  38. 2026-07-23 01:55 UTCEG score recompute
  39. 2026-07-22 22:41 UTCEG score recompute
  40. 2026-07-22 14:05 UTCEPSS rescore
  41. 2026-07-20 17:04 UTCEPSS rescore
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  43. 2026-07-19 14:28 UTCEPSS rescore
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  60. 2026-07-09 19:07 UTCEPSS rescore
  61. 2026-07-08 15:12 UTCEPSS rescore
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  70. 2026-07-02 16:57 UTCEPSS rescore
  71. 2026-07-01 15:03 UTCEPSS rescore
  72. 2026-06-30 23:20 UTCEPSS rescore
  73. 2026-06-30 23:20 UTCEPSS rescore
  74. 2026-06-29 14:04 UTCEPSS rescore
  75. 2026-06-28 14:05 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-8333?
CVE-2020-8333 is a medium vulnerability published on September 24, 2020. A potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStation models may allow arbitrary code execution
When was CVE-2020-8333 disclosed?
CVE-2020-8333 was first published on September 24, 2020, 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-2020-8333 actively exploited?
CVE-2020-8333 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-8333?
CVE-2020-8333 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2020-8333?
A fix for CVE-2020-8333 is available: update to the fixed version the vendor names in its advisory.

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