What is CVE-2022-34325?

CVE-2022-34325 is a high-severity vulnerability in Insyde Insydeh2o, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2022-11-14.

How severe is CVE-2022-34325?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Insyde Insydeh2o

CVE-2022-34325

DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the StorageSecurityCommandDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.001 (3.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Insyde Insydeh2o
N/a — versions n/a

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2022-34325?: CVE-2022-34325 is a high-severity vulnerability in Insyde Insydeh2o, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2022-11-14.
How severe is CVE-2022-34325?: High severity. CVSS v3 base score is 7.8 out of 10.