high
7.8
Advisory Published
Updated

CVE-2020-8333

First published: Thu Sep 24 2020(Updated: )

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

Credit: psirt@lenovo.com

Affected SoftwareAffected VersionHow to fix
Lenovo 63 Firmware<fckt98a
Lenovo 63
Lenovo H50-30g Firmware<fckt98a
Lenovo H50-30g
Lenovo M4500 Firmware<fckt98a
Lenovo M4500
<fckt98a
Lenovo Qitian 4500 Firmware<fckt98a
Lenovo Qitian 4500
Lenovo Qitian B4550 Firmware<fckt98a
Lenovo Qitian B4550
Lenovo Qitian M4550 Firmware<fckt98a
Lenovo Qitian M4550
Lenovo Thinkcentre E73 Firmware<fckt98a
Lenovo Thinkcentre E73
Lenovo Thinkcentre E73s Firmware<fckt98a
Lenovo Thinkcentre E73s
Lenovo Thinkcentre E93 Firmware<fbktdea
Lenovo ThinkCentre E93
Lenovo Thinkcentre M4500k Firmware<fckt98a
Lenovo Thinkcentre M4500k
Lenovo Thinkcentre M4500q Firmware<fhkt85a
Lenovo Thinkcentre M4500q
Lenovo Thinkcentre M4500t Firmware<fckt98a
Lenovo Thinkcentre M4500t
Lenovo Thinkcentre M4500s Firmware<fckt98a
Lenovo Thinkcentre M4500s
Lenovo Yangtian Afh81 Firmware<fckt98a
Lenovo Yangtian Afh81
Lenovo Yangtian Mc H81 Firmware<fckt98a
Lenovo Yangtian Mc H81
Lenovo Yangtian Mf H81 Pci Firmware<fckt98a
Lenovo Yangtian Mf H81 Pci
Lenovo Yangtian Wf H81 Pci Firmware<fckt98a
Lenovo Yangtian Wf H81 Pci
Lenovo Yangtian Tc H81 Pci Firmware<fckt98a
Lenovo Yangtian Tc H81 Pci
Lenovo Yangtian Wcc H81 Pci Firmware<fckt98a
Lenovo Yangtian Wcc H81 Pci
Lenovo Thinkcentre M9350z Firmware<fekta2a
Lenovo Thinkcentre M9350z
Lenovo Thinkcentre M93z Firmware<fekta2a
Lenovo Thinkcentre M93z
<a3kt70a
<a3kt70a
Lenovo Thinkstation E32 Firmware<fbktdea
Lenovo Thinkstation E32
Lenovo Thinkstation P300 Firmware<a2kt70a
Lenovo Thinkstation P300
<a2kt70a

Remedy

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

Remedy

Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-30042.

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Reference Links

Frequently Asked Questions

  • What is the vulnerability CVE-2020-8333?

    CVE-2020-8333 is a potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStation models that may allow arbitrary code execution.

  • Which Lenovo Desktops and ThinkStation models are affected by CVE-2020-8333?

    CVE-2020-8333 affects Lenovo Desktops and ThinkStation models with Lenovo 63 Firmware, Lenovo H50-30g Firmware, Lenovo M4500 Firmware, Lenovo Qitian B4550 Firmware, Lenovo Qitian M4550 Firmware, Lenovo Thinkcentre E73 Firmware, Lenovo Thinkcentre E73s Firmware, Lenovo Thinkcentre E93 Firmware, Lenovo Thinkcentre M4500k Firmware, Lenovo Thinkcentre M4500q Firmware, Lenovo Thinkcentre M4500t Firmware, Lenovo Thinkcentre M4500s Firmware, Lenovo Yangtian Afh81 Firmware, Lenovo Yangtian Mc H81 Firmware, Lenovo Yangtian Mf H81 Pci Firmware, Lenovo Yangtian Wf H81 Pci Firmware, Lenovo Yangtian Tc H81 Pci Firmware, Lenovo Yangtian Wcc H81 Pci Firmware, Lenovo Thinkcentre M9350z Firmware, Lenovo Thinkcentre M93z Firmware, Lenovo Thinkstation E32 Firmware, Lenovo Thinkstation P300 Firmware, Lenovo Thinkstation S30 Firmware, Lenovo Thinkstation C30 Firmware, and Lenovo Thinkstation D30 Firmware.

  • What is the severity of CVE-2020-8333?

    The severity of CVE-2020-8333 is high with a CVSS score of 7.8.

  • How can I fix CVE-2020-8333?

    To fix CVE-2020-8333, it is recommended to apply the firmware updates provided by Lenovo. Please refer to the Lenovo Product Security Advisories for specific instructions.

  • Where can I find more information about CVE-2020-8333?

    You can find more information about CVE-2020-8333 in the Lenovo Product Security Advisories.

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