CVE-2020-8334 Security feature bypass in BIOS
Attackers can bypass BIOS tamper detection on specific Lenovo ThinkPad models, potentially enabling unauthorized physical access to the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8334?
CVE-2020-8334 is a medium-severity vulnerability in Lenovo BIOS, published on 9 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad T495s, X395, T495, A485, A285, A475, A275 which may allow for unauthorized access.
Weakness: CWE-754
Which versions are affected by CVE-2020-8334?
It affects 7 products.
Products include Lenovo Thinkpad A275 Firmware, Lenovo Thinkpad A285 Firmware, Lenovo Thinkpad A475 Firmware, Lenovo Thinkpad A485 Firmware, Lenovo Thinkpad T495 Firmware, Lenovo Thinkpad T495s Firmware and 1 more.
How do I fix CVE-2020-8334?
No fix has been published for CVE-2020-8334 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8334 being exploited?
There is no known exploitation of CVE-2020-8334 in the wild and no public exploit code.
Other vulnerabilities in Lenovo BIOS
Sources
Also known as GHSA-9x9m-j8v4-cx96.