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I. Basic Information for CVE-2021-27477
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
JTEKT TOYOPUC-Plus 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JTEKT TOYOPUC-Plus是日本JTEKT公司的一个PLC。 JTEKT TOYOPUC-Plus存在缓冲区错误漏洞，该漏洞源于当产品接收到无效帧时，FL-net接收缓冲区的外部区域将被覆盖。导致PLC CPU检测到系统错误，受影响的产品停止运行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-JTEKT Corporation TOYOPUC PLC The following versions of the PLC are affected: 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 -
II. Public POCs for CVE-2021-27477
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III. Intelligence Information for CVE-2021-27477
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IV. Related Vulnerabilities
Same vendor: n/a
Same weakness: CWE-119
V. Comments for CVE-2021-27477

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