CVE-2020-8341

lowpriority · track · 10OT risk · elevatedEPSS 0.003 · 28 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (28th) EPSS

CVSS 2.1 · low

Is it mine?

11 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

2.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.02.1lowAV:L/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.12.4lowCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 0.9 · impact 1.4

v3.12.2lowCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USLLM-inferred

affected products (11)

Products and version ranges known to be affected.

Lenovo ThinkPadall versionsenisa_euvdEU
lenovo thinkpad t490 (20nx) firmware< n2iet90wnvdUScpe:2.3:o:lenovo:thinkpad_t490_\(20nx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad t490 (20qx) firmware< n2iet90wnvdUScpe:2.3:o:lenovo:thinkpad_t490_\(20qx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad t490 (20rx) firmware< n2ret16wnvdUScpe:2.3:o:lenovo:thinkpad_t490_\(20rx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad t490s (20nx) firmware< n2jet89wnvdUScpe:2.3:o:lenovo:thinkpad_t490s_\(20nx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad t495 drift firmware< 2020-08-30nvdUScpe:2.3:o:lenovo:thinkpad_t495_drift_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad t590 (20nx) firmware< n2iet90wnvdUScpe:2.3:o:lenovo:thinkpad_t590_\(20nx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad x1 carbon (20qx) firmware< n2het54wnvdUScpe:2.3:o:lenovo:thinkpad_x1_carbon_\(20qx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad x1 yoga (20qx) firmware< n2het54wnvdUScpe:2.3:o:lenovo:thinkpad_x1_yoga_\(20qx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad x390 (20qx) firmware< n2jet89wnvdUScpe:2.3:o:lenovo:thinkpad_x390_\(20qx\)_firmware:*:*:*:*:*:*:*:*
lenovo thinkpad x390 (20sx) firmware< n2set18wnvdUScpe:2.3:o:lenovo:thinkpad_x390_\(20sx\)_firmware:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-09-01modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan