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HIGH · 7.5

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...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
JtektPc10G-Cpu Tcc-6353 FirmwareAll versions
JtektPc10G-Cpu Tcc-6353-
JtektPc10Ge Tcc-6464 FirmwareAll versions
JtektPc10Ge Tcc-6464-
JtektPc10P Tcc-6372 FirmwareAll versions
JtektPc10P Tcc-6372-
JtektPc10P-Dp Tcc-6726 FirmwareAll versions
JtektPc10P-Dp Tcc-6726-
JtektPc10P-Dp-Io Tcc-6752 FirmwareAll versions
JtektPc10P-Dp-Io Tcc-6752-
JtektPc10B-P Tcc-6373 FirmwareAll versions
JtektPc10B-P Tcc-6373-
JtektPc10B Tcc-1021 FirmwareAll versions
JtektPc10B Tcc-1021-
JtektPc10B-E\/C Tcu-6521 FirmwareAll versions
JtektPc10B-E\/C Tcu-6521-
JtektPc10E Tcc-4737 FirmwareAll versions
JtektPc10E Tcc-4737-
JtektPlus Cpu Tcc-6740 FirmwareAll versions
JtektPlus Cpu Tcc-6740-

Related Weaknesses (CWE)

CWE-404

References

FAQ

What is CVE-2021-27458?

CVE-2021-27458 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...

How severe is CVE-2021-27458?

CVE-2021-27458 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27458?

Check the references section above for vendor advisories and patch information. Affected products include: Jtekt Pc10G-Cpu Tcc-6353 Firmware, Jtekt Pc10G-Cpu Tcc-6353, Jtekt Pc10Ge Tcc-6464 Firmware, Jtekt Pc10Ge Tcc-6464, Jtekt Pc10P Tcc-6372 Firmware.