An arbitrary write vulnerability in Microsoft signed UEFI firmware from DT Research Inc.
Priority HIGH 71Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00424 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| DT Research | BiosFlashShell | 80.02 | — | No fix listed | CNA |
| DT Research | BiosFlashShell | 81.02 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.17 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.18 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.19 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.20 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.21 | — | No fix listed | CNA |
| DT Research | Dtbios | 70.22 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.17 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.18 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.19 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.20 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.21 | — | No fix listed | CNA |
| DT Research | Dtbios | 71.22 | — | No fix listed | CNA |
- BiosFlashShell VendorDT Research Affected 80.02 Fixed in — No fix listed CNA
- BiosFlashShell VendorDT Research Affected 81.02 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.17 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.18 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.19 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.20 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.21 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 70.22 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.17 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.18 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.19 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.20 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.21 Fixed in — No fix listed CNA
- Dtbios VendorDT Research Affected 71.22 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3052
- 2026-10-03 Alias added: GHSA-q4rv-v64c-3hff
References
Sources
- CVE-2025-3052 · CVE Program
- CVE-2025-3052 · NVD
- FIRST EPSS
- GHSA-q4rv-v64c-3hff · GitHub Advisory Database · CC BY 4.0
- CVE-2025-3052 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences