CVE-2023-30633

An issue was discovered in TrEEConfigDriver in Insyde InsydeH2O with kernel 5.0 through 5.5. It can report false TPM PCR values, and thus mask malware activity. Devices use Platform Configuration Registers (PCRs) to record information about device and software configuration to ensure that the boot process is secure. (For example, Windows uses these PCR measurements to determine device health.) A vulnerable device can masquerade as a healthy device by extending arbitrary values into Platform Configuration Register (PCR) banks. This requires physical access to a target victim's device, or compromise of user credentials for a device. This issue is similar to CVE-2021-42299 (on Surface Pro devices).

Published: 2023-10-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-30633 is rated Low Risk (25.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-30633

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 0.21% +0.15%
2 2025-03-30 0.22% 0.07% -0.16%
3 2025-03-29 — 0.22% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-30633

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 0.9 4.0 [email protected]

Weakness enumeration for CVE-2023-30633

Affected software / configurations for CVE-2023-30633

Vendor Product Version Raw CPE
insyde insydeh2o >= 5.3, < 5.3.05.37.17 cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
insyde insydeh2o >= 5.4, < 5.4.05.45.17 cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
insyde insydeh2o >= 5.5, < 5.5.05.53.17 cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
insyde insydeh2o >= 5.6, < 5.6.05.60.17 cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
insyde insydeh2o 5.2 cpe:2.3:a:insyde:insydeh2o:5.2:*:*:*:*:*:*:*

References for CVE-2023-30633

cvelogic Threat Intelligence