What is CVE-2023-27388?

CVE-2023-27388 is a critical-severity vulnerability in Especmic Rs-12n, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-05-23.

How severe is CVE-2023-27388?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Especmic Rs-12n

CVE-2023-27388

Improper authentication vulnerability in T&D Corporation and ESPEC MIC CORP. data logger products allows a remote unauthenticated attacker to login to the product as a registered user. Affected products and versions are as follows: T&D Corporation data logger products (TR-71W/72W all firmware versions, RTR-5W all firmware versions, WDR-7 all firmware versions, WDR-3 all firmware versions, and WS-2 all firmware versions), and ESPEC MIC CORP. data logger products (RT-12N/RS-12N all firmware versions, RT-22BN all firmware versions, and TEU-12N all firmware versions).

Vulnerability class: Broken Authentication

EPSS: 0.013 (66.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2023-27388?: CVE-2023-27388 is a critical-severity vulnerability in Especmic Rs-12n, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-05-23.
How severe is CVE-2023-27388?: Critical severity. CVSS v3 base score is 9.8 out of 10.