What is CVE-2023-27373?

CVE-2023-27373 is a medium-severity vulnerability in Insyde Insydeh2o, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2023-08-07.

How severe is CVE-2023-27373?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Insyde Insydeh2o

CVE-2023-27373

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (6.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Insyde Insydeh2o — versions 5.0, 5.1, 5.2
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2023-27373?: CVE-2023-27373 is a medium-severity vulnerability in Insyde Insydeh2o, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2023-08-07.
How severe is CVE-2023-27373?: Medium severity. CVSS v3 base score is 5.5 out of 10.