CVE-2025-3052

8.2 highEPSS 0.4%

High (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.

Severity

CVSS 3.1

8.2 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
Published: 2025-06-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://uefi.org/specs/UEFI/2.10/32_Secure_Boot_and_Driver_Signing.html
https://www.binarly.io/advisories/brly-dva-2025-001
https://www.kb.cert.org/vuls/id/806555

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