CVE-2023-27388

Name: CVE-2023-27388
Creator: NVD / NIST
Published: 2023-05-23T02:15:09.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2023-27388 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.25%

65.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tandd	Tr-71w Firmware	All versions
Tandd	Tr-72w Firmware	All versions
Tandd	Rtr-5w Firmware	All versions
Tandd	Wdr-7 Firmware	All versions
Tandd	Wdr-3 Firmware	All versions
Tandd	Ws-2 Firmware	All versions
Especmic	Rt-12n Firmware	All versions
Especmic	Rs-12n Firmware	All versions
Especmic	Rt-22bn Firmware	All versions
Especmic	Teu-12n Firmware	All versions

References

https://jvn.jp/en/jp/JVN14778242/Third Party Advisory
https://www.monitoring.especmic.co.jp/post/VulnerabilityInRT-12N_RS-12N_RT-22BNandTEU-12NVendor Advisory
https://www.tandd.com/news/detail.html?id=780Vendor Advisory
https://jvn.jp/en/jp/JVN14778242/Third Party Advisory
https://www.monitoring.especmic.co.jp/post/VulnerabilityInRT-12N_RS-12N_RT-22BNandTEU-12NVendor Advisory
https://www.tandd.com/news/detail.html?id=780Vendor Advisory

Timeline

Published: May 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27388?

How severe is CVE-2023-27388?

CVE-2023-27388 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-27388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST