Vulnerability Details : 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.
Products affected by CVE-2021-27458
- cpe:2.3:o:jtekt:pc10g-cpu_tcc-6353_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10ge_tcc-6464_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10p_tcc-6372_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10p-dp_tcc-6726_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10p-dp-io_tcc-6752_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10b-p_tcc-6373_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10b_tcc-1021_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10b-e\/c_tcu-6521_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:pc10e_tcc-4737_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_cpu_tcc-6740_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_ex_tcu-6741_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_ex2_tcu-6858_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_efr_tcu-6743_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_efr2_tcu-6859_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_2p-efr_tcu-6929_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:plus_bus-ex_tcu-6900_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:fl\/et-t-v2h_thu-6289_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:jtekt:2port-efr_thu-6404_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27458
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27458
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-27458
-
The product does not release or incorrectly releases a resource before it is made available for re-use.Assigned by: ics-cert@hq.dhs.gov (Primary)
References for CVE-2021-27458
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-03
JTEKT TOYOPUC products | CISAThird Party Advisory;US Government Resource
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