Vulnerability · Published Jan 14, 2026 · Assigned by Insyde
CVE-2025-12050In H2OFFT32.sys is potentially vulnerable to a buffer overflow.
High 7.8
In plain English
A high-severity out-of-bounds write in InsydeH2O tools from Insyde Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Insyde Software | InsydeH2O tools | See in the Solution |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H