Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

DoS Vulnerability in MELSEC iQ-R Q L Series

September 5, 2024
Reading Time: 2 mins read
in Alerts

Mitsubishi Electric Corporation has identified a denial-of-service (DoS) vulnerability in its MELSEC iQ-R, Q, and L series CPU modules, affecting their Ethernet communication. This vulnerability arises from uncontrolled resource consumption, which occurs when the CPU module receives a specially crafted packet from a malicious attacker. This can cause the Ethernet communication to enter a DoS condition, requiring a reset to recover the system. The affected models span across multiple series, including iQ-R, Q, and L series, with several firmware and operating system versions vulnerable to this issue. The vulnerability is tracked as CVE-2020-5652 and has a CVSS base score of 7.5.

The affected product models include various MELSEC iQ-R, Q, and L series CPU modules, with specific firmware and operating system versions outlined in the advisory. For example, iQ-R series modules with firmware versions “20” or earlier and Q series models with serial numbers “22081” or earlier are vulnerable. The advisory provides a comprehensive list of affected models, serial numbers, and firmware versions to help customers determine if their devices are at risk. Mitsubishi Electric has made available instructions for customers to check their device’s firmware and operating system versions, which can be found on their official website.

To address this issue, Mitsubishi Electric recommends updating the affected products to the fixed versions. For some modules, an update is available to resolve the vulnerability, while others may not have an update option due to hardware limitations. The fixed versions for the vulnerable models are detailed in the advisory. For devices that cannot be updated, Mitsubishi Electric suggests mitigation measures, such as using firewalls or virtual private networks (VPNs) to prevent unauthorized access or restricting access to trusted networks only.

In response to the vulnerability, Mitsubishi Electric expressed gratitude to the individual who reported the issue. They have also updated the advisory several times, including adding new details about affected product models, firmware versions, and operating system versions. As of the latest update in September 2024, the advisory includes instructions on checking for updates, upgrading firmware, and the necessary mitigations for unupdatable devices. Customers are encouraged to consult their local Mitsubishi Electric representatives for further assistance.

Reference:

  • Mitsubishi Electric MELSEC iQ-R, Q and L Series (Update E)

Tags: CISACyber AlertsCyber Alerts 2024Cyber threatsCybersecurity and Infrastructure Security Agency (CISA)Denial-of-Service (DoS) attackMELSECMitsubishi ElectricSeptember 2024Vulnerabilities
ADVERTISEMENT

Related Posts

Linux Core Dump Flaws Risk Password Leaks

Linux Core Dump Flaws Risk Password Leaks

June 2, 2025
Linux Core Dump Flaws Risk Password Leaks

GitHub Code Flaw Replicated By AI Models

June 2, 2025
Linux Core Dump Flaws Risk Password Leaks

Google Script Used In New Phishing Scams

June 2, 2025
OneDrive Flaw Gives Sites Full Data Access

OneDrive Flaw Gives Sites Full Data Access

May 30, 2025
OneDrive Flaw Gives Sites Full Data Access

Fake AI Apps Drop Ransomware And Malware

May 30, 2025
OneDrive Flaw Gives Sites Full Data Access

EDDIESTEALER Uses Fake CAPTCHAs for Stealing

May 30, 2025

Latest Alerts

Linux Core Dump Flaws Risk Password Leaks

GitHub Code Flaw Replicated By AI Models

Google Script Used In New Phishing Scams

EDDIESTEALER Uses Fake CAPTCHAs for Stealing

Fake AI Apps Drop Ransomware And Malware

OneDrive Flaw Gives Sites Full Data Access

Subscribe to our newsletter

    Latest Incidents

    Covenant Health Cyberattack Shuts Hospitals

    Moscow DDoS Attack Cuts Internet For Days

    Puerto Rico’s Justice Department Cyberattack

    State Actors Hit ConnectWise ScreenConnect

    Ivanti Flaw Hits NHS Staff and Patient Data

    Amalgamated Sugar Data Breach Exposes SSNs

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial