Lenovo: >> Thinkpad L580 Firmware >> 2020-07-10 Security Vulnerabilities
A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.
CVSS Score
4.4
EPSS Score
0.001
Published
2021-11-12
A potential vulnerability in the SMI callback function used to access flash device in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
CVSS Score
6.7
EPSS Score
0.0
Published
2021-11-12
In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). Lenovo was notified that after resuming from S3 sleep mode in various versions of BIOS for Lenovo systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
CVSS Score
3.3
EPSS Score
0.0
Published
2019-04-10
In some Lenovo ThinkPad products, one BIOS region is not properly included in the checks, allowing injection of arbitrary code.
CVSS Score
6.8
EPSS Score
0.001
Published
2018-07-19