CVE-2021-4210 Code injection in BIOS
Local attackers with elevated privileges can execute arbitrary code via a vulnerability in the NVME driver SMI callback function in Lenovo BIOS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-4210?
CVE-2021-4210 is a medium-severity code injection vulnerability in Lenovo BIOS, published on 22 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential vulnerability in the SMI callback function used in the NVME driver in some Lenovo Desktop, ThinkStation, and ThinkEdge models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Weakness: CWE-20
Which versions are affected by CVE-2021-4210?
It affects 32 products.
Products include Lenovo A540-24icb Firmware, Lenovo A540-27icb Firmware, Lenovo Ideacentre 5-14imb05 Firmware, Lenovo Ideacentre Aio 3-22ada6 Firmware, Lenovo Ideacentre Aio 3-22iil5 Firmware, Lenovo Ideacentre Aio 3-22itl6 Firmware and 26 more.
How do I fix CVE-2021-4210?
No fix has been published for CVE-2021-4210 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-4210 being exploited?
There is no known exploitation of CVE-2021-4210 in the wild and no public exploit code.
Sources
Also known as GHSA-2gc6-xpq3-f7gm.