What is CVE-2022-33905?

CVE-2022-33905 is a high-severity vulnerability in Insyde Kernel, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.0/10. Published 2022-11-15.

How severe is CVE-2022-33905?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Insyde Kernel

CVE-2022-33905

DMA transactions which are targeted at input buffers used for the AhciBusDxe software SMI handler could cause SMRAM corruption (a TOCTOU attack). DMA transactions which are targeted at input buffers used for the software SMI handler used b…

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

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Insyde Kernel
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-2022-33905?: CVE-2022-33905 is a high-severity vulnerability in Insyde Kernel, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.0/10. Published 2022-11-15.
How severe is CVE-2022-33905?: High severity. CVSS v3 base score is 7.0 out of 10.