CVE-2021-3969 Race condition in IMController
A local attacker can exploit a race condition in Lenovo IMController to elevate privileges on the system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3969?
CVE-2021-3969 is a high-severity vulnerability in Lenovo IMController, published on 18 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-367
Which versions are affected by CVE-2021-3969?
It affects 1 product.
Products include Lenovo System Interface Foundation.
How do I fix CVE-2021-3969?
No fix has been published for CVE-2021-3969 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3969 being exploited?
There is no known exploitation of CVE-2021-3969 in the wild and no public exploit code.
Other vulnerabilities in Lenovo IMController
- CVE-2019-6186 Privilege escalation in Lenovo System Interface Foundation
- CVE-2021-3922 Race condition in IMController
- CVE-2019-6189 Other in Lenovo System Interface Foundation
- CVE-2016-8223 Privilege escalation in All ThinkPad, ThinkCentre, ThinkStation and Lenovo-branded systems preloaded with the Windows 10 operating system, or any system running Lenovo Companion, Lenovo Settings, or Lenovo ID.
- CVE-2020-8318 Privilege escalation in LenovoSystemUpdatePlugin for Lenovo System Interface Foundation
Sources
Also known as GHSA-v6hw-6vc6-j7hx.