Security Notifications

Acer Article | CVE-2022-4020

A vulnerability has been discovered in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices, which may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.

Microsoft Incident Report | CVE-2022-21894

In April 2023, cybersecurity researchers at Microsoft identified a dangerous UEFI bootkit (CVE-2022-21894), dubbed “BlackLotus”. It operates at computer startup, compromising systems and disabling OS security mechanisms.

CVE-2022-40080

A stack overflow vulnerability has been found in the BIOS firmware of Aspire E5-475G laptops, which can allow local attackers to execute arbitrary code and gain escalated privileges during the boot process.

Reference Article
CosmicStrand appears to be the work of an unknown Chinese-speaking threat actor.

Reference Article

The highly targeted attack reveals a new level of sophistication in attacks against UEFI firmware.