What is CVE-2021-27458?

CVE-2021-27458 is a high-severity vulnerability in Jtekt 2port-Efr Thu-6404, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2021-04-19.

How severe is CVE-2021-27458?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jtekt 2port-Efr Thu-6404

CVE-2021-27458

If Ethernet communication of the JTEKT Corporation TOYOPUC product series’ (TOYOPUC-PC10 Series: PC10G-CPU TCC-6353: All versions, PC10GE TCC-6464: All versions, PC10P TCC-6372: All versions, PC10P-DP TCC-6726: All versions, PC10P-DP-IO TCC-6752: All versions, PC10B-P TCC-6373: All versions, PC10B TCC-1021: All versions, PC10B-E/C TCU-6521: All versions, PC10E TCC-4737: All versions; TOYOPUC-Plus Series: Plus CPU TCC-6740: All versions, Plus EX TCU-6741: All versions, Plus EX2 TCU-6858: All versions, Plus EFR TCU-6743: All versions, Plus EFR2 TCU-6859: All versions, Plus 2P-EFR TCU-6929: All versions, Plus BUS-EX TCU-6900: All versions; TOYOPUC-PC3J/PC2J Series: FL/ET-T-V2H THU-6289: All versions, 2PORT-EFR THU-6404: All versions) are left in an open state by an attacker, Ethernet communications cannot be established with other devices, depending on the settings of the link parameters.

EPSS: 0.011 (62.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27458?: CVE-2021-27458 is a high-severity vulnerability in Jtekt 2port-Efr Thu-6404, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2021-04-19.
How severe is CVE-2021-27458?: High severity. CVSS v3 base score is 7.5 out of 10.