CVE-2025-3052

An arbitrary write vulnerability in Microsoft signed UEFI firmware from DT Research Inc.

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

DT Research · BiosFlashShell · Dtbios

CVSS v3.1 CNA

8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS

0.43% chance of exploitation in the next 30 days, 35th percentile

Published

2025-06-10

Proof-of-concept exploits (2)

• TheMalwareGuardian/CVE-2025-30520★ · 2026-08-16
• TheMalwareGuardian/Exploitation-Technique-UEFI-SecureBoot-Bypass-gSecurity2-Corruption2★ · 2026-08-16

Security advisories

• https://www.kb.cert.org/vuls/id/806555

References

• CVE Record
• NVD entry

Related

• CVE-2002-1120
• CVE-2003-0264
• CVE-2007-1567
• CVE-2017-14980
• CVE-2018-14847
• CVE-2018-18912