CVE-2023-30633: insyde insydeh2o
Vulnerability summary
CVE-2023-30633 is a medium (CVSS 5.3) vulnerability in insyde insydeh2o. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.
Timeline
- 19-10-2023PublishedVulnerability first disclosed.
- 12-09-2024Last modifiedVulnerability information updated.
Description
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).
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.03 pp
From 0.21% on 22-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Insyde1 product
- insydeh2o≥ 5.3, < 5.3.05.37.17 | ≥ 5.4, < 5.4.05.45.17 | ≥ 5.5, < 5.5.05.53.17 | ≥ 5.6, < 5.6.05.60.17 | 5.2
1 vendor · 1 product
References
2 links- www.insyde.com/security-pledgeVendor Advisory
- www.insyde.com/security-pledge/SA-2023045Vendor Advisory