CVE-2025-3052: Dt Research Biosflashshell

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

An arbitrary write vulnerability in Microsoft signed UEFI firmware allows for code execution of untrusted software. This allows an attacker to control its value, leading to arbitrary memory writes, including modification of critical firmware settings stored in NVRAM. Exploiting this vulnerability could enable security bypasses, persistence mechanisms, or full system compromise.

Affected products

• Dt Research Biosflashshell: version 80.02 only; version 81.02 only
• Dt Research Dtbios: version 70.17 only; version 70.18 only; version 70.19 only; version 70.20 only; version 70.21 only; version 70.22 only; …

Published 2025-06-10. Last modified 2026-06-17.