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TI-2021-02866 Aliases CVE-2021-3969GHSA-v6hw-6vc6-j7hx

Time-of-check time-of-use race condition in Lenovo IMController

Priority LOW 38CWE-367Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges.

Why it matters now

EPSS 0.01925 80th percentileScored 2026-11-07
Fix Fixed IMController (Lenovo): 1.1.20.3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LenovoIMControllerbefore 1.1.20.31.1.20.3Patch availableCNA
  • IMController VendorLenovo Affected before 1.1.20.3 Fixed in 1.1.20.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lenovo:system_interface_foundation:*:*:*:*:*:*:*:*before 1.1.20.3VulnerableLenovo
  • cpe:2.3:a:lenovo:system_interface_foundation:*:*:*:*:*:*:*:* Versions before 1.1.20.3 Vulnerable ·Lenovo

Remediation

  • Fix · CNA IMController (Lenovo) Fixed in 1.1.20.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Lenovo IMController 1.1.20.3

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2021-02831 Time-of-check time-of-use race condition in Lenovo IMControllerPriority LOW 38
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3969
  2. 2026-10-03 Alias added: GHSA-v6hw-6vc6-j7hx

References

Patch 1

  • TI-2019-04385 A potential vulnerability was reported in Lenovo System Interface Foundation versions… CVSS 3.1HIGH 8.8
  • TI-2021-02831 Time-of-check time-of-use race condition in Lenovo IMController CVSS 3.1HIGH 7.8
  • TI-2020-06722 A privilege escalation vulnerability was reported in Lenovo System Interface Foundation… CVSS 3.1HIGH 7.8
  • TI-2020-06721 A privilege escalation vulnerability was reported in the LenovoSystemUpdatePlugin for… CVSS 3.1HIGH 7.8
  • TI-2019-04388 Untrusted search path in Lenovo System Interface Foundation CVSS 3.1HIGH 7.8
  • TI-2016-06776 Improper access control in Lenovo All ThinkPad, ThinkCentre, ThinkStation and… CVSS 3.0HIGH 7.8
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences