Mitsubishi Electric MELSEC iQ-F Series EtherNet/IP module and Ethernet module Always-Incorrect Control Flow Implementation (CVE-2026-1874)

Always-Incorrect Control Flow Implementation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP versions 1.106 and prior and Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP versions 1.000 and prior allo...

CVE-2026-1876

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service DoS condition on the products by continuously sending UDP packets to the products. A...

CVE-2026-1875

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service DoS condition on the products by continuously sending UDP packets to the...

CVE-2026-1875 Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service DoS condition on the products by continuously sending UDP packets to the...

CVE-2026-1875

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service DoS condition on the products by continuously sending UDP packets to the...

PT-2026-22722

Always-Incorrect Control Flow Implementation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP versions 1.106 and prior and Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP all versions allows a remote...

PT-2026-22723

Name of the Vulnerable Software and Affected Versions Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP affected versions not specified Description An improper resource shutdown or release issue exists in the Mitsubishi Electric Corporation MELSEC iQ-F Series...

EUVD-2020-8808

Malware in sbrugna...

CISA Releases Six Industrial Control Systems Advisories

CISA released six Industrial Control Systems ICS advisories on September 23, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-266-01 AutomationDirect CLICK PLUS ICSA-25-266-02 Mitsubishi Electric MELSEC-Q Serie...

CISA Releases Fourteen Industrial Control Systems Advisories

CISA released fourteen Industrial Control Systems ICS advisories on September 9, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-252-01 Rockwell Automation ThinManager ICSA-25-252-02 ABB Cylon Aspect BMS/BAS...

CVE-2025-7731

Cleartext Transmission of Sensitive Information vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to obtain credential information by intercepting SLMP communication messages, and read or write the device values of the product...

CVE-2025-5514 Denial-of-Service(DoS) Vulnerability in Web server function on MELSEC iQ-F Series CPU module

Improper Handling of Length Parameter Inconsistency vulnerability in web server function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to delay the processing of the web server function and prevent legitimate users from utilizing the web...

Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module (Update A)

RISK EVALUATION Successful exploitation of this vulnerability could result in a remote attacker being able to delay the processing of the Web server function and prevent legitimate users from utilizing the Web server function by sending a specially crafted HTTP request. 2. RECOMMENDED PRACTICES...

CVE-2021-20609

Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU, MELSEC iQ-R Series R04/08/16/32/120ENCPU, MELSEC iQ-R Series R08/16/32/120SFCPU, MELSEC iQ-R Series R08/16/32/120PCPU, MELSEC iQ-R Series R08/16/32/120PSFCPU, MELSEC iQ-R Series R16/32/64MTCPU,...

CVE-2020-16850

Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halting, physical access to the PLC is required in order to...

Mitsubishi Electric MELSEC iQ-F Series Insufficient Resource Pool (CVE-2023-7033)

Insufficient Resource Pool vulnerability in Ethernet function of Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote attacker to cause a temporary Denial of Service condition for a certain period of time in Ethernet communication of the products by performing TCP SYN...

PT-2024-2826 · Mitsubishi · Melsec Iq-R Series Safety Cpu +1

Name of the Vulnerable Software and Affected Versions: MELSEC iQ-R Series Safety CPU R08/16/32/120SFCPU all versions MELSEC iQ-R Series SIL2 Process CPU R08/16/32/120PSFCPU all versions Description: The issue is related to an Incorrect Privilege Assignment vulnerability that allows a remote...

Mitsubishi Electric MELSEC-F Series Improper Authentication (CVE-2023-4562)

Improper Authentication vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to obtain sequence programs from the product or write malicious sequence programs or improper data in the product without authentication by sending...

PT-2023-29929 · Mitsubishi · Melsec Iq-R Series Cpu Modules

Name of the Vulnerable Software and Affected Versions: MELSEC iQ-F/iQ-R Series CPU modules affected versions not specified Description: The issue allows a remote unauthenticated attacker to prevent legitimate users from logging into the Web server function for a certain period after the attacker...

Vulnerability of microprogrammed programmable logic controllers MELSEC-F: related to authentication breaches, allowing attackers to circumvent existing security restrictions

The vulnerability of MELSEC-F programmable logic controllers’ microprogramming software is related to authentication breaches. Exploiting this vulnerability allows an attacker, operating remotely, to circumvent existing security restrictions...