CVE-2021-3971

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 22-04-2022 11:15

Last modified: - 06-05-2022 10:57

Total changes: - 3

Description

A potential vulnerability by a driver used during older manufacturing processes on some consumer Lenovo Notebook devices that was mistakenly included in the BIOS image could allow an attacker with elevated privileges to modify firmware protection region by modifying an NVRAM variable.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Local

Attack vector

High

Availability

High

Confidentiality

High

Integrity

High

Privileges required

Unchanged

Scope

None

User interaction

6.7

Base score

0.8

5.9

Exploitability score

Impact score

Verification logic

AND

vendor=lenovo AND product=ideapad_3-14ada05_firmware AND versionEndExcluding=e8cn33ww

vendor=lenovo AND product=ideapad_3-14ada05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-14ada6_firmware AND versionEndExcluding=hbcn21ww

vendor=lenovo AND product=ideapad_3-14ada6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-14alc6_firmware AND versionEndExcluding=glcn43ww

vendor=lenovo AND product=ideapad_3-14alc6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-14are05_firmware AND versionEndExcluding=dzcn42ww

vendor=lenovo AND product=ideapad_3-14are05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15ada6_firmware AND versionEndExcluding=hbcn21ww

vendor=lenovo AND product=ideapad_3-15ada6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15alc6_firmware AND versionEndExcluding=glcn43ww

vendor=lenovo AND product=ideapad_3-15alc6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15are05_firmware AND versionEndExcluding=dzcn42ww

vendor=lenovo AND product=ideapad_3-15are05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15igl05_firmware AND versionEndExcluding=dvcn23ww

vendor=lenovo AND product=ideapad_3-15igl05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-17ada05_firmware AND versionEndExcluding=e8cn33ww

vendor=lenovo AND product=ideapad_3-17ada05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-17ada6_firmware AND versionEndExcluding=hbcn21ww

vendor=lenovo AND product=ideapad_3-17ada6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-17alc6_firmware AND versionEndExcluding=glcn43ww

vendor=lenovo AND product=ideapad_3-17alc6 AND version=-

AND

vendor=lenovo AND product=ideapad_3-17are05_firmware AND versionEndExcluding=dzcn42ww

vendor=lenovo AND product=ideapad_3-17are05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-17iil05_firmware AND versionEndExcluding=emcn52ww

vendor=lenovo AND product=ideapad_3-17iil05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15ada05_firmware AND versionEndExcluding=e8cn33ww

vendor=lenovo AND product=ideapad_3-15ada05 AND version=-

AND

vendor=lenovo AND product=l3-15itl6_firmware AND versionEndExcluding=gfcn23ww

vendor=lenovo AND product=l3-15itl6 AND version=-

AND

vendor=lenovo AND product=l340-15irh_firmware AND versionEndExcluding=bgcn35ww

vendor=lenovo AND product=l340-15irh AND version=-

AND

vendor=lenovo AND product=l340-15iwl_firmware AND versionEndExcluding=atcn46ww

vendor=lenovo AND product=l340-15iwl AND version=-

AND

vendor=lenovo AND product=l340-15iwl_touch_firmware AND versionEndExcluding=atcn46ww

vendor=lenovo AND product=l340-15iwl_touch AND version=-

AND

vendor=lenovo AND product=l340-17irh_firmware AND versionEndExcluding=bgcn35ww

vendor=lenovo AND product=l340-17irh AND version=-

AND

vendor=lenovo AND product=l340-17iwl_firmware AND versionEndExcluding=atcn46ww

vendor=lenovo AND product=l340-17iwl AND version=-

AND

vendor=lenovo AND product=legion_5_pro-16ach6_firmware AND versionEndExcluding=hhcn25ww

vendor=lenovo AND product=legion_5_pro-16ach6 AND version=-

AND

vendor=lenovo AND product=legion_5_pro-16ach6h_firmware AND versionEndExcluding=gkcn51ww

vendor=lenovo AND product=legion_5_pro-16ach6h AND version=-

AND

vendor=lenovo AND product=legion_5_pro-16ith6_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5_pro-16ith6 AND version=-

AND

vendor=lenovo AND product=legion_5_pro-16ith6h_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5_pro-16ith6h AND version=-

AND

vendor=lenovo AND product=legion_5-15ach6_firmware AND versionEndExcluding=hhcn25ww

vendor=lenovo AND product=legion_5-15ach6 AND version=-

AND

vendor=lenovo AND product=legion_5-15ach6a_firmware AND versionEndExcluding=g9cn28ww

vendor=lenovo AND product=legion_5-15ach6a AND version=-

AND

vendor=lenovo AND product=legion_5-15ach6h_firmware AND versionEndExcluding=gkcn51ww

vendor=lenovo AND product=legion_5-15ach6h AND version=-

AND

vendor=lenovo AND product=legion_5-15ith6_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5-15ith6 AND version=-

AND

vendor=lenovo AND product=legion_5-15ith6h_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5-15ith6h AND version=-

AND

vendor=lenovo AND product=legion_5-17ach6_firmware AND versionEndExcluding=hhcn25ww

vendor=lenovo AND product=legion_5-17ach6 AND version=-

AND

vendor=lenovo AND product=legion_5-17ach6h_firmware AND versionEndExcluding=gkcn51ww

vendor=lenovo AND product=legion_5-17ach6h AND version=-

AND

vendor=lenovo AND product=legion_5-17ith6_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5-17ith6 AND version=-

AND

vendor=lenovo AND product=legion_5-17ith6h_firmware AND versionEndExcluding=h1cn46ww

vendor=lenovo AND product=legion_5-17ith6h AND version=-

AND

vendor=lenovo AND product=legion_7-16achg6_firmware AND versionEndExcluding=gkcn51ww

vendor=lenovo AND product=legion_7-16achg6 AND version=-

AND

vendor=lenovo AND product=legion_7-16ithg6_firmware AND versionEndExcluding=gkcn51ww

vendor=lenovo AND product=legion_7-16ithg6 AND version=-

AND

vendor=lenovo AND product=legion_y540-15irh_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y540-15irh AND version=-

AND

vendor=lenovo AND product=legion_y540-15irh-pg0_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y540-15irh-pg0 AND version=-

AND

vendor=lenovo AND product=legion_y540-17irh_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y540-17irh AND version=-

AND

vendor=lenovo AND product=legion_y540-17irh-pg0_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y540-17irh-pg0 AND version=-

AND

vendor=lenovo AND product=legion_y545_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y545 AND version=-

AND

vendor=lenovo AND product=legion_y545-pg0_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y545-pg0 AND version=-

AND

vendor=lenovo AND product=legion_y7000-2019_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y7000-2019 AND version=-

AND

vendor=lenovo AND product=legion_y7000-2019-pg0_firmware AND versionEndExcluding=bhcn44ww

vendor=lenovo AND product=legion_y7000-2019-pg0 AND version=-

AND

vendor=lenovo AND product=s145-14api_firmware AND versionEndExcluding=bucn31ww

vendor=lenovo AND product=s145-14api AND version=-

AND

vendor=lenovo AND product=s145-14ast_firmware AND versionEndExcluding=aycn26ww

vendor=lenovo AND product=s145-14ast AND version=-

AND

vendor=lenovo AND product=s145-14igm_firmware AND versionEndExcluding=awcn28ww

vendor=lenovo AND product=s145-14igm AND version=-

AND

vendor=lenovo AND product=s145-14iil_firmware AND versionEndExcluding=dkcn54ww

vendor=lenovo AND product=s145-14iil AND version=-

AND

vendor=lenovo AND product=s145-15api_firmware AND versionEndExcluding=bucn31ww

vendor=lenovo AND product=s145-15api AND version=-

AND

vendor=lenovo AND product=s145-15ast_firmware AND versionEndExcluding=aycn26ww

vendor=lenovo AND product=s145-15ast AND version=-

AND

vendor=lenovo AND product=s145-15igm_firmware AND versionEndExcluding=awcn28ww

vendor=lenovo AND product=s145-15igm AND version=-

AND

vendor=lenovo AND product=s145-15iil_firmware AND versionEndExcluding=dkcn54ww

vendor=lenovo AND product=s145-15iil AND version=-

AND

vendor=lenovo AND product=s540-13api_firmware AND versionEndExcluding=cxcn34ww

vendor=lenovo AND product=s540-13api AND version=-

AND

vendor=lenovo AND product=v14_g2-acl_firmware AND versionEndExcluding=glcn43ww

vendor=lenovo AND product=v14_g2-acl AND version=-

AND

vendor=lenovo AND product=v14-ada_firmware AND versionEndExcluding=e8cn33ww

vendor=lenovo AND product=v14-ada AND version=-

AND

vendor=lenovo AND product=v14-are_firmware AND versionEndExcluding=dzcn42ww

vendor=lenovo AND product=v14-are AND version=-

AND

vendor=lenovo AND product=v14-igl_firmware AND versionEndExcluding=dvcn23ww

vendor=lenovo AND product=v14-igl AND version=-

AND

vendor=lenovo AND product=v14-iil_firmware AND versionEndExcluding=dkcn54ww

vendor=lenovo AND product=v14-iil AND version=-

AND

vendor=lenovo AND product=v140-15iwl_firmware AND versionEndExcluding=atcn46ww

vendor=lenovo AND product=v140-15iwl AND version=-

AND

vendor=lenovo AND product=v15_g2-alc_firmware AND versionEndExcluding=glcn43ww

vendor=lenovo AND product=v15_g2-alc AND version=-

AND

vendor=lenovo AND product=v15-ada_firmware AND versionEndExcluding=e8cn33ww

vendor=lenovo AND product=v15-ada AND version=-

AND

vendor=lenovo AND product=v15-igl_firmware AND versionEndExcluding=dvcn23ww

vendor=lenovo AND product=v15-igl AND version=-

AND

vendor=lenovo AND product=v15-iil_firmware AND versionEndExcluding=dkcn54ww

vendor=lenovo AND product=v15-iil AND version=-

AND

vendor=lenovo AND product=v17-iil_firmware AND versionEndExcluding=emcn52ww

vendor=lenovo AND product=v17-iil AND version=-

AND

vendor=lenovo AND product=v340-17iwl_firmware AND versionEndExcluding=atcn46ww

vendor=lenovo AND product=v340-17iwl AND version=-

AND

vendor=lenovo AND product=yoga_slim_7_pro-14ach5_d_firmware AND versionEndExcluding=hecn24ww

vendor=lenovo AND product=yoga_slim_7_pro-14ach5_d AND version=-

AND

vendor=lenovo AND product=yoga_slim_7_pro-14ach5_od_firmware AND versionEndExcluding=hecn24ww

vendor=lenovo AND product=yoga_slim_7_pro-14ach5_od AND version=-

AND

vendor=lenovo AND product=ideapad_3-14iil05_firmware AND versionEndExcluding=dvcn23ww

vendor=lenovo AND product=ideapad_3-14iil05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-14igl05_firmware AND versionEndExcluding=emcn52ww

vendor=lenovo AND product=ideapad_3-14igl05 AND version=-

AND

vendor=lenovo AND product=ideapad_3-15iil05_firmware AND versionEndExcluding=emcn52ww

vendor=lenovo AND product=ideapad_3-15iil05 AND version=-

AND

vendor=lenovo AND product=ideapad_5-15are05_firmware AND versionEndExcluding=e7cn44ww

vendor=lenovo AND product=ideapad_5-15are05 AND version=-

AND

vendor=lenovo AND product=ideapad_creator_5-15imh05_firmware AND versionEndExcluding=egcn36ww

vendor=lenovo AND product=ideapad_creator_5-15imh05 AND version=-

AND

vendor=lenovo AND product=ideapad_gaming_3-15arh05_firmware AND versionEndExcluding=fccn17ww

vendor=lenovo AND product=ideapad_gaming_3-15arh05 AND version=-

AND

vendor=lenovo AND product=ideapad_gaming_3-15imh05_firmware AND versionEndExcluding=egcn36ww

vendor=lenovo AND product=ideapad_gaming_3-15imh05 AND version=-

Reference

https://support.lenovo.com/us/en/product_security/LEN-73440

Keywords

CVE-2021-3971

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-3971

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures