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 Desktop Firmware<fckt98a
Lenovo 63
Lenovo H50-30G Desktop Firmware<fckt98a
Lenovo H50-30G Firmware
Lenovo m4500 Desktop firmware<fckt98a
Lenovo M4500 Desktop
Lenovo M4550<fckt98a
Lenovo M4550
Lenovo Qitian 4500 Desktop firmware<fckt98a
Lenovo Qitian 4500 Firmware
Lenovo Qitian B4550 Desktop Firmware<fckt98a
Lenovo Qitian B4550 Desktop
Lenovo Qitian M4550 Desktop Firmware<fckt98a
Lenovo M4550
Lenovo ThinkCentre E73 (TWR) Firmware<fckt98a
Lenovo ThinkCentre E73 Firmware
Lenovo ThinkCentre E73 Firmware<fckt98a
Lenovo Thinkcentre E73s Desktop
Lenovo ThinkCentre E93 (SFF) Firmware<fbktdea
Lenovo ThinkCentre E93 (SFF)
Lenovo ThinkCentre M4500K Desktop Firmware<fckt98a
Lenovo ThinkCentre M4500K Desktop
Lenovo ThinkCentre M4500 Firmware<fhkt85a
Lenovo ThinkCentre M4500q Firmware
Lenovo ThinkCentre M4500 Firmware<fckt98a
Lenovo ThinkCentre M4500t Firmware
Lenovo ThinkCentre M4500s Desktop Firmware<fckt98a
Lenovo ThinkCentre M4500t/s
Lenovo Yangtian AFH81 Desktop Firmware<fckt98a
Lenovo Yangtian afh81 Desktop
Lenovo Yangtian MC H81 Desktop Firmware<fckt98a
Lenovo Yangtian MC H81 Desktop Firmware
Lenovo Yangtian MF/WF H81 PCI<fckt98a
Lenovo Yangtian MF H81 PCI Desktop
Lenovo Yangtian WF H81 PCI Desktop Firmware<fckt98a
Lenovo Yangtian WF H81 PCI Firmware
Lenovo Yangtian TC H81 PCI<fckt98a
Lenovo Yangtian TC H81 PCI Firmware
Lenovo Yangtian WCC H81 PCI<fckt98a
Lenovo Yangtian WCC H81 PCI Firmware
Lenovo ThinkCentre M9350z Firmware<fekta2a
Lenovo ThinkCentre M9350z Firmware
Lenovo ThinkCentre M93z Firmware<fekta2a
Lenovo ThinkCentre M93z Firmware
Lenovo ThinkStation C30 Firmware<a3kt70a
Lenovo ThinkStation C30 Firmware
Lenovo ThinkStation D30 Firmware<a3kt70a
Lenovo ThinkStation D30 Firmware
Lenovo ThinkStation E32 Firmware<fbktdea
Lenovo ThinkStation E32 Firmware
Lenovo ThinkStation P300 Firmware<a2kt70a
Lenovo ThinkStation P300 Firmware
Lenovo ThinkStation S30 firmware<a2kt70a
Lenovo ThinkStation S30 firmware

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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