Unspecified vulnerability in the BIOS F.26 and earlier for the HP Compaq Notebook PC allows physically proximate attackers to obtain privileged access via unspecified vectors, possibly involving an authentication bypass of the power-on password.

Unspecified vulnerability in the BIOS F.04 through F.11 for the HP Compaq Business Notebook PC allows local users to cause a denial of service via unspecified vectors.

Insyde BIOS V190 does not clear the keyboard buffer after reading the BIOS password during system startup, which allows local administrators or users to read the password directly from physical memory.

An error in the Toshiba ACPI BIOS 1.6 causes the BIOS to only examine the first slot in the Master Boot Record (MBR) table for an active partition, which prevents the system from booting even though the MBR is not malformed. NOTE: it has been debated as to whether or not this issue poses a security vulnerability, since administrative privileges would be required, and other DoS attacks are possible with such privileges.