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CVE-2022-3745· NVD / CVE Program· CNA lenovo

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

A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevated privileges to view incoming and returned data from SMI.

MediumCVSS 4.4 · v3.1—No exploit No fix recorded
Published
Aug 23, 2023
Updated
Jun 17, 2026
EPSS
0.2% · 6th percentile
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Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.4
CNA · lenovo
4.4
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
lenovoslim 7 14iap7
lenovoideapad 1 14iau7 firmware
lenovoideapad 1 14iau7
lenovoideapad 1 14igl7 firmware
lenovoideapad 1 14igl7
lenovoideapad 1 15iau7 firmware
lenovoideapad 1 15iau7
lenovoideapad 1 15igl7 firmware
lenovoideapad 1 15igl7
lenovoideapad 1-14ijl7 firmware
lenovoideapad 1-14ijl7
lenovoideapad 1-15ijl7 firmware

and 162 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • lenovo ideapad 1 14iau7 firmwarebefore jkcn34ww
  • lenovo ideapad 1 14igl7 firmwarebefore kkcn15ww
  • lenovo ideapad 1 15iau7 firmwarebefore jkcn34ww
  • lenovo ideapad 1 15igl7 firmwarebefore kkcn15ww
  • lenovo ideapad 1-14ijl7 firmwarebefore htcn31ww
  • lenovo ideapad 1-15ijl7 firmwarebefore htcn31ww
  • lenovo ideapad 3 14iau7 firmwarebefore jkcn34ww
  • lenovo ideapad 3 15iau7 firmwarebefore jkcn34ww
  • lenovo ideapad 3 17iau7 firmwarebefore jkcn34ww
  • lenovo ideapad 3-14igl05 firmwarebefore dvcn28ww
  • lenovo ideapad 3-14iil05 firmwarebefore emcn56ww
  • lenovo ideapad 3-14iml05 firmwarebefore dxcn44ww
  • lenovo ideapad 3-14itl05 firmwarebefore gccn32ww
  • lenovo ideapad 3-14itl6 firmwarebefore ggcn51ww
  • lenovo ideapad 3-15igl05 firmwarebefore dvcn28ww
  • lenovo ideapad 3-15iil05 firmwarebefore emcn56ww
  • lenovo ideapad 3-15iml05 firmwarebefore dxcn44ww
  • lenovo ideapad 3-15itl05 firmwarebefore gccn32ww
  • lenovo ideapad 3-15itl6 firmwarebefore ggcn51ww
  • lenovo ideapad 3-17iil05 firmwarebefore emcn56ww

Versions reported by the vendor

Affected version ranges reported by the assigning authority (lenovo). Independent of NVD's CPE analysis and usually ahead of it.

  • Lenovo Notebook

    • variousaffected

Same product

lenovo: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-3746A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevat
    26Monitor
  • CVE-2022-3744A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevat
    26Monitor
  • CVE-2022-3742A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevat
    26Monitor
  • CVE-2022-3743A potential vulnerability was discovered in LCFC BIOS for some Lenovo consumer notebook models that could allow a local attacker with elevat
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records