What is CVE-2025-12053?

CVE-2025-12053 is a high-severity vulnerability in Insyde Software Insydeh2o Tools, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-01-14.

How severe is CVE-2025-12053?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Insyde Software Insydeh2o Tools

CVE-2025-12053

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.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Insyde Software Insydeh2o Tools — versions See in the Solution

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

8338d8cb-57f7-4252-abc0-96fd13e98d21

Frequently asked questions

What is CVE-2025-12053?: CVE-2025-12053 is a high-severity vulnerability in Insyde Software Insydeh2o Tools, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-01-14.
How severe is CVE-2025-12053?: High severity. CVSS v3 base score is 7.8 out of 10.