Vulnerability in Insyde Insydeh2o

CVE-2021-33626

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt…

EPSS: 0.003 (21.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-33626?
CVE-2021-33626 is a high-severity vulnerability in Insyde Insydeh2o, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.8/10. Published 2021-10-01.
How severe is CVE-2021-33626?
High severity. CVSS v3 base score is 7.8 out of 10.