CVE-2021-3969 | BDVDB-2026-176402 Detail

LenovoIMController

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References#

https://support.lenovo.com/us/en/product_security/LEN-75210

Exploit#

No public exploit known

History#

Version 12022-05-18Record published in the CVE List.
Version 22024-08-03Most recent update recorded in the CVE List.

Published

Published: 2022-05-18
Last modified: 2024-08-03

Vendor information

Vendor: Lenovo
Product: IMController

All Lenovo vulnerabilities

Score

7.8 High

EPSS

1.9%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 80.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Race Condition

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.1.20.3
Fixed
1.1.20.3

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.8 High

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

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).