bs_i2cio.sys

BIOSTAR I2C interface driver

From BIOSTAR Microtech International

Part of the BIOSTAR family

Status

On a known-vulnerable list

Known variants

1 distinct hashes

Field notes

bs_i2cio.sys is a kernel driver from BIOSTAR for I2C bus communication, used by motherboard monitoring and management utilities. It is on the public LOLDrivers list and in the Microsoft Vulnerable Driver Blocklist.

If you have a BIOSTAR motherboard with vendor utilities, the driver is expected. Update the BIOSTAR software to the current version.

What the record shows

bs_i2cio.sys is listed as a known-vulnerable driver on the public LOLDrivers project. One distinct binary hash matching this filename is on record.

What this means, plainly

Presence is not proof of misuse. Driver files on the LOLDrivers list commonly ship with legitimate hardware tools, gaming software, or vendor utilities. Their presence is recorded as evidence on a record. It is never treated as a verdict about a person.

Related drivers

Other drivers in the BIOSTAR family. See the whole family →

bs_hwmio64_w10.sys bs_hwmio64.sys bs_rcio.sys bs_rcio64.sys bs_rciow1064.sys

Source

Status data comes from the public LOLDrivers project, a community-curated registry of drivers known to be vulnerable or malicious. The snapshot Vera uses was refreshed July 10, 2026. CVE links go to the NIST National Vulnerability Database.

In plain words

Kernel driver BYOVD Ring 0 Code-signing certificate Certificate revocation The full glossary →

Cite this entry

Vera Project. “bs_i2cio.sys.” Vera Field Guide (Driver). The Vera Project. https://www.veraproject.xyz/field-guide/drivers/bs-i2cio-sys