7.8

CVE-2021-27477

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Jtekt ≫ Pc10g-cpu Firmware Version < 3.91
   Jtekt ≫ Pc10g-cpu Version -
Jtekt ≫ 2port-efr Firmware Version < 1.50
   Jtekt ≫ 2port-efr Version -
Jtekt ≫ Plus Cpu Firmware Version < 3.11
   Jtekt ≫ Plus Cpu Version -
Jtekt ≫ Plus Ex Firmware Version < 3.11
   Jtekt ≫ Plus Ex Version -
Jtekt ≫ Plus Ex2 Firmware Version < 3.11
   Jtekt ≫ Plus Ex2 Version -
Jtekt ≫ Plus Efr Firmware Version < 3.11
   Jtekt ≫ Plus Efr Version -
Jtekt ≫ Plus Efr2 Firmware Version < 3.11
   Jtekt ≫ Plus Efr2 Version -
Jtekt ≫ Plus 2p-efr Firmware Version < 3.11
   Jtekt ≫ Plus 2p-efr Version -
Jtekt ≫ Pc10p-dp Firmware Version < 1.50
   Jtekt ≫ Pc10p-dp Version -
Jtekt ≫ Pc10p-dp-io Firmware Version < 1.50
   Jtekt ≫ Pc10p-dp-io Version -
Jtekt ≫ Plus Bus-ex Firmware Version < 2.13
   Jtekt ≫ Plus Bus-ex Version -
Jtekt ≫ Nano 10gx Firmware Version < 3.00
   Jtekt ≫ Nano 10gx Version -
Jtekt ≫ Nano 2et Firmware Version < 2.40
   Jtekt ≫ Nano 2et Version -
Jtekt ≫ Pc10pe Firmware Version < 1.02
   Jtekt ≫ Pc10pe Version -
Jtekt ≫ Pc10pe-16/16p Firmware Version < 1.02
   Jtekt ≫ Pc10pe-16/16p Version -
Jtekt ≫ Pc10e Firmware Version < 1.02
   Jtekt ≫ Pc10e Version -
Jtekt ≫ Fl/et-t-v2h Firmware Version < f2.8_e1.5
   Jtekt ≫ Fl/et-t-v2h Version -
Jtekt ≫ Pc10b Firmware Version < 1.11
   Jtekt ≫ Pc10b Version -
Jtekt ≫ Pc10b-p Firmware Version < 1.11
   Jtekt ≫ Pc10b-p Version -
Jtekt ≫ Nano Cpu Firmware Version < 2.08
   Jtekt ≫ Nano Cpu Version -
Jtekt ≫ Pc10p Firmware Version < 1.05
   Jtekt ≫ Pc10p Version -
Jtekt ≫ Pc10ge Firmware Version < 1.04
   Jtekt ≫ Pc10ge Version -
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.13% 0.62
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://us-cert.cisa.gov/ics/advisories/icsa-21-180-04
Third Party Advisory
US Government Resource