Vulnerability · Published Sep 3, 2026 · Assigned by Insyde
CVE-2021-38489HDD Password Stored In Plaintext
High 8.2
In plain English
A high-severity security flaw in InsydeH2O 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 5% of all known vulnerabilities).
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.2%top 94.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HDD password plaintext is stored in a UEFI variable.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Insyde Software | InsydeH2O | See in the Solution |
Weakness: CWE-256 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H