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.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jtekt pc10g-cpu_tcc-6353_firmware | No range specified | — |
| jtekt pc10ge_tcc-6464_firmware | No range specified | — |
| jtekt pc10p_tcc-6372_firmware | No range specified | — |
| jtekt pc10p-dp_tcc-6726_firmware | No range specified | — |
| jtekt pc10p-dp-io_tcc-6752_firmware | No range specified | — |
| jtekt pc10b-p_tcc-6373_firmware | No range specified | — |
| jtekt pc10b_tcc-1021_firmware | No range specified | — |
| jtekt pc10b-e\/c_tcu-6521_firmware | No range specified | — |
| jtekt pc10e_tcc-4737_firmware | No range specified | — |
| jtekt plus_cpu_tcc-6740_firmware | No range specified | — |
| jtekt plus_ex_tcu-6741_firmware | No range specified | — |
| jtekt plus_ex2_tcu-6858_firmware | No range specified | — |
| jtekt plus_efr_tcu-6743_firmware | No range specified | — |
| jtekt plus_efr2_tcu-6859_firmware | No range specified | — |
| jtekt plus_2p-efr_tcu-6929_firmware | No range specified | — |
| jtekt plus_bus-ex_tcu-6900_firmware | No range specified | — |
| jtekt fl\/et-t-v2h_thu-6289_firmware | No range specified | — |
| jtekt 2port-efr_thu-6404_firmware | No range specified | — |
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