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Fencer Intel
medium 6.7

CVE-2022-3746 json

A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with eleva…

published 3y ago modified 4mo ago also EUVD-2022-43102

cvss
6.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevated privileges to cause some peripherals to work abnormally due to an exposed Embedded Controller (EC) interface.

Patch / fix

  • lenovo ideapad_1_14iau7_firmware jkcn34ww
  • lenovo ideapad_1_14igl7_firmware kkcn15ww
  • lenovo ideapad_1_15iau7_firmware jkcn34ww
  • lenovo ideapad_1_15igl7_firmware kkcn15ww
  • lenovo ideapad_1-14ijl7_firmware htcn31ww
  • lenovo ideapad_1-15ijl7_firmware htcn31ww
  • lenovo ideapad_3_14iau7_firmware jkcn34ww
  • lenovo ideapad_3_15iau7_firmware jkcn34ww
  • lenovo ideapad_3_17iau7_firmware jkcn34ww
  • lenovo ideapad_3-15igl05_firmware dvcn28ww
  • lenovo ideapad_3-17iil05_firmware emcn56ww
  • lenovo ideapad_3-17itl6_firmware ggcn51ww
  • lenovo ideapad_5_15ial7_firmware jbcn27ww
  • lenovo ideapad_5-15itl05_firmware fhcn70ww
  • lenovo l3-15iml05_firmware ejcn30ww
  • lenovo l3-15itl6_firmware gfcn29ww
  • lenovo legion_5_15iah7_firmware j2cn49ww
  • lenovo legion_5_15iah7h_firmware j2cn49ww
  • lenovo legion_5_pro_16iah7_firmware j2cn49ww
  • lenovo legion_5_pro_16iah7h_firmware j2cn49ww

Is CVE-2022-3746 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Lenovo Notebook

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.