CVE-2021-27458

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.26%
Third-Party Advisory cisa.gov
Affected: n/a JTEKT Corporation TOYOPUC products
Published at:
Updated at:

References

Link Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-03 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-27458?
CVE-2021-27458 has been scored as a high severity vulnerability.
How to fix CVE-2021-27458?
To fix CVE-2021-27458, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27458 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-27458 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27458?
CVE-2021-27458 affects n/a JTEKT Corporation TOYOPUC products.
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