Intel

CVE-2025-12053

UEFI Firmware: Out-of-bounds Write (CVE-2025-12053)

highEPSS 0.2%

Affected

  • Insyde/UEFI Firmware = InsydeH2O..InsydeH2O

Description

The drivers in the tool packages use RTL_QUERY_REGISTRY_DIRECT flag to read a registry value to which an untrusted user-mode application may be able to cause a buffer overflow.

Source: BSI CSAFBSI WID Portalcvelistv5

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

InsydeUEFI Firmware
InsydeH2O

Metrics

XIEM Effective CVSS
7.8
Source: cna-v3
EPSS percentile
5.0 %
Low — this CVE sits in the lower 10% of all CVEs scored today.
KEV status
—
Show all metrics
Severity
high
Priority score
53.18
Exploit maturity
no public PoC known
CVSS v3
7.8
EPSS score
0.2 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-01-14 01:27 UTC
CWE
CWE-787

Weakness classes (CWE)

  • CWE-787Base

    Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

    cwe.mitre.org →

References & sources