What is CVE-2025-3052?

CVE-2025-3052 is a high-severity vulnerability in Dt Research Biosflashshell, classified under CWE-123: WRITE-WHAT-WHERE CONDITION. CVSS score: 8.2/10. Published 2025-06-10.

How severe is CVE-2025-3052?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2025-3052 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Dt Research Biosflashshell

CVE-2025-3052

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.

Published 2025-06-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Dt Research Biosflashshell — versions 80.02, 81.02
Dt Research Dtbios — versions 70.17, 70.18, 70.19

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-3052?: CVE-2025-3052 is a high-severity vulnerability in Dt Research Biosflashshell, classified under CWE-123: WRITE-WHAT-WHERE CONDITION. CVSS score: 8.2/10. Published 2025-06-10.
How severe is CVE-2025-3052?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2025-3052 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.