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).

Published: 2023-05-23 Last update: 2025-01-31 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-27388 is rated High Risk (69.3/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.03%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-27388

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-25 1.36% 2.03% +0.66%
2 2026-05-24 1.01% 1.36% +0.35%
3 2026-03-19 — 1.01% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-27388

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-27388

Affected software / configurations for CVE-2023-27388

Vendor Product Version Raw CPE
tandd tr-71w_firmware — cpe:2.3:o:tandd:tr-71w_firmware:*:*:*:*:*:*:*:*
tandd tr-72w_firmware — cpe:2.3:o:tandd:tr-72w_firmware:*:*:*:*:*:*:*:*
tandd rtr-5w_firmware — cpe:2.3:o:tandd:rtr-5w_firmware:*:*:*:*:*:*:*:*
tandd wdr-7_firmware — cpe:2.3:o:tandd:wdr-7_firmware:*:*:*:*:*:*:*:*
tandd wdr-3_firmware — cpe:2.3:o:tandd:wdr-3_firmware:*:*:*:*:*:*:*:*
tandd ws-2_firmware — cpe:2.3:o:tandd:ws-2_firmware:*:*:*:*:*:*:*:*
especmic rt-12n_firmware — cpe:2.3:o:especmic:rt-12n_firmware:*:*:*:*:*:*:*:*
especmic rs-12n_firmware — cpe:2.3:o:especmic:rs-12n_firmware:*:*:*:*:*:*:*:*
especmic rt-22bn_firmware — cpe:2.3:o:especmic:rt-22bn_firmware:*:*:*:*:*:*:*:*
especmic teu-12n_firmware — cpe:2.3:o:especmic:teu-12n_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-27388

cvelogic Threat Intelligence