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). After resuming from S3 sleep mode in various versions of BIOS for some Lenovo ThinkPad systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
lenovo thinkpad_t490_\\(20nx\\)_firmware |
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lenovo thinkpad_t490_\\(20qx\\)_firmware |
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lenovo thinkpad_t490_\\(20rx\\)_firmware |
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lenovo thinkpad_t490s_\\(20nx\\)_firmware |
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lenovo thinkpad_t495_drift_firmware |
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lenovo thinkpad_t590_\\(20nx\\)_firmware |
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lenovo thinkpad_x1_carbon_\\(20qx\\)_firmware |
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lenovo thinkpad_x1_yoga_\\(20qx\\)_firmware |
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lenovo thinkpad_x390_\\(20qx\\)_firmware |
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lenovo thinkpad_x390_\\(20sx\\)_firmware |
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