What is CVE-2023-39283?

CVE-2023-39283 is a high-severity vulnerability in Insyde Insydeh2o, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-11-02.

How severe is CVE-2023-39283?

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

Buffer overflow in Insyde Insydeh2o

CVE-2023-39283

An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (9.4th 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

Insyde Insydeh2o — versions 5.5.05.53.22, 5.6, 5.6.05.60.22
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Not Applicable)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2023-39283?: CVE-2023-39283 is a high-severity vulnerability in Insyde Insydeh2o, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-11-02.
How severe is CVE-2023-39283?: High severity. CVSS v3 base score is 7.8 out of 10.