CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-27477
High (7.5) in jtekt. EPSS 1.1% chance of exploitation in the next 30 days.
When JTEKT Corporation TOYOPUC PLC versions PC10G-CPU, 2PORT-EFR, Plus CPU, Plus EX, Plus EX2, Plus EFR, Plus EFR2, Plus 2P-EFR, PC10P-DP, PC10P-DP-IO, Plus BUS-EX, Nano 10GX, Nano 2ET,PC10PE, PC10PE-16/16P, PC10E, FL/ET-T-V2H, PC10B,PC10B-P, Nano CPU, PC10P, and PC10GE receive an invalid frame, the outside area of a receive buffer for FL-net are overwritten. As a result, the PLC CPU detects a system error, and the affected products stop.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-787, CWE-119
- Published
- Modified
- Record from
- the NVD, synced
Affected
- jtekt:2port-efr_firmware
- jtekt:fl\/et-t-v2h_firmware
- jtekt:nano_10gx_firmware
- jtekt:nano_2et_firmware
- jtekt:nano_cpu_firmware
- jtekt:pc10b-p_firmware
- jtekt:pc10b_firmware
- jtekt:pc10e_firmware
- jtekt:pc10g-cpu_firmware
- jtekt:pc10ge_firmware
- jtekt:pc10p-dp-io_firmware
- jtekt:pc10p-dp_firmware
- jtekt:pc10p_firmware
- jtekt:pc10pe-16\/16p_firmware
- jtekt:pc10pe_firmware
- jtekt:plus_2p-efr_firmware
- jtekt:plus_bus-ex_firmware
- jtekt:plus_cpu_firmware
- jtekt:plus_efr2_firmware
- jtekt:plus_efr_firmware
- jtekt:plus_ex2_firmware
- jtekt:plus_ex_firmware