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CVE-2020-5656 Improper access control vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91…
Description
Improper access control vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| MELSEC iQ-R series | Versions not published |
Other CVEs of MELSEC iQ-R series
The 6 CVEs of MELSEC iQ-R series →
CVE-2020-5657
Improper neutralization of argument delimiters in a command ('Argument Injection') vulnerability in TCP/IP function…
Not rated
CVE-2020-5658
Resource Management Errors vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91…
Not rated
CVE-2020-5655
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91…
Not rated
CVE-2020-5653
Buffer overflow vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP…
Not rated