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Vulnerability record · CVE-2020-8333 · published 24 September 2020

CVE-2020-8333: Lenovo 63 firmware vulnerability

Lenovo · 63 Firmware

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

7.8 CVSS 3.1 High EPSS 0.33% · top 74.9%
7.8CVSS 3.1 base score, v2 7.2
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
27Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://support.lenovo.com/us/en/product_security/LEN-30042 PatchVendor Advisory
https://support.lenovo.com/us/en/product_security/LEN-30042 PatchVendor Advisory

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Related vulnerabilities

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

9.8CVE-2019-6188Lenovo 510-15ikl firmware vulnerabilityThe BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad T460p, BIOS versions up to R07ET90W, and T470p, BIOS versions up to R0FET50W…EPSS 1.3%6.8CVE-2017-3753Lenovo ideacentre 300-20ish firmware code injection vulnerabilityA vulnerability has been identified in some Lenovo products that use UEFI (BIOS) code developed by American Megatrends, Inc. (AMI). With this vulnera…EPSS 0.52%6.4CVE-2019-6172Lenovo 510-15ikl firmware vulnerabilityA potential vulnerability in the SMI callback function used in Legacy USB driver using passed parameter without sufficient checking in some Lenovo Th…EPSS 0.33%6.4CVE-2019-6170Lenovo 510-15ikl firmware vulnerabilityA potential vulnerability in the SMI callback function used in the Legacy USB driver using boot services structure in runtime phase in some Lenovo Th…EPSS 0.35%3.3CVE-2019-6156Lenovo 510-15ikl firmware vulnerabilityIn Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer o…EPSS 0.24%2.4CVE-2020-8352Lenovo thinkcentre e73 firmware vulnerabilityIn some Lenovo Desktop models, the Configuration Change Detection BIOS setting failed to detect SATA configuration changes.EPSS 0.31%

Source: NIST National Vulnerability Database (record CVE-2020-8333), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.