What is CVE-2022-30283?

CVE-2022-30283 is a high-severity vulnerability in Insyde Kernel, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.5/10. Published 2022-11-15.

How severe is CVE-2022-30283?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Insyde Kernel

CVE-2022-30283

In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges…

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

EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/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-2022-30283?: CVE-2022-30283 is a high-severity vulnerability in Insyde Kernel, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.5/10. Published 2022-11-15.
How severe is CVE-2022-30283?: High severity. CVSS v3 base score is 7.5 out of 10.