CVE-2023-30633

mediumpriority · track · 21EPSS 0.002 · 15 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.24% (15th) EPSS
CVSS 5.3 · medium
Is it mine?
13 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

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).

01

cvss

Technical severity, 0–10. One row per scoring source.

6.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 0.9 · impact 4
v3.16.1mediumAV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:Nsecondary · FSTEC (BDU) RU
v3.14.9mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-254US
04

affected products (13)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-2622Insyde UEFI Firmware: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2023-10-10csaf · cert_bundDE

    Ein Angreifer mit physischem Zugriff kann eine Schwachstelle in Insyde UEFI Firmware ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdNVDCVE.orgMITRE
published 2023-10-19modified 2026-06-17
08

references (7)

External citations — patches, advisories, analysis.

scry

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