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ICSA-24-074-14: Mitsubishi Electric MELSEC-Q/L Series (Update B) ↗ source

March 14, 2024 CISA ICS Advisory

Summary

Successful exploitation of these vulnerabilities could allow a remote attacker to be able to read arbitrary information or execute malicious code on a target product by sending a specially crafted packet. CVE-2024-0802: In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to read arbitrary information from a target product or execute malicious code on a target product by sending a specially crafted packet. CVE-2024-0803: In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet CVE-2024-1915: In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet CVE-2024-1916: In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet CVE-2024-1917: In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-24-074-14
Status
Final · version 3
Initial release
2024-03-14
Last revised
2024-06-13 (3 revisions)
Vendor
Mitsubishi Electric
Critical infrastructure sectors
Critical Manufacturing
Deployed
Worldwide
Vendor headquarters
Japan

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

Credit: Anton Dorfman (Positive Technologies)

Affected products (22)
  • MELSEC-Q Series Q03UDECPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDPVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDPVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDPVCPU — <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-L Series L02CPU(-P) — <=The_first_5_digits_of_serial_No._"26041"
  • MELSEC-L Series L06CPU(-P) — <=The_first_5_digits_of_serial_No._"26041"
  • MELSEC-L Series L26CPU(-P) — <=The_first_5_digits_of_serial_No._"26041"
  • MELSEC-L Series L26CPU-(P)BT — <=The_first_5_digits_of_serial_No._"26041"
Revision history (3)
  • 2024-06-13 — v3: Update B - Update to the affected products and mitigations
  • 2024-05-16 — v2: Update A - Update to the affected products and mitigations
  • 2024-03-14 — v1: Initial Publication

From CISA's machine-readable CSAF 2.0 advisory (JSON).

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2024-0802 CWE-468 Incorrect Pointer Scaling 9.8 Critical In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to read arbitrary information from a target product or execute malicious code on a target product by sending a specially crafted packet.

Mitigation: Mitsubishi Electric released the fixed version of the product:

Vendor fix: MELSEC-Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-Q Series Q03/04/06/13/26UDVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Affected, fixed & timeline

Affected:

  • MELSEC-Q Series Q03UDECPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU <=The_first_5_digits_of_serial_No._"26061"
  • … and 7 more

Mitigation: MELSEC-Q Series Q04/06/13/26UDPVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-L Series L02/06/26CPU(-P), L26CPU-(P)BT: firmware versions where the first 5 digits of serial No. "26042" or later

Mitigation: Mitsubishi Electric recommends that users consider replacing with MELSEC iQ-R Series.

Mitigation: Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:

Mitigation: Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.

Mitigation: Use within a LAN and block access from untrusted networks and hosts through firewalls.

Mitigation: Restrict physical access to the affected product as well as to the personal computers and the network devices that can communicate with it.

Mitigation: Install antivirus software on your personal computer that can access the affected product.

Mitigation: For specific additional details, see Mitsubishi Electric advisory 2023-024.

CVE-2024-0803 CWE-190 Integer Overflow or Wraparound 9.8 Critical In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet

Mitigation: Mitsubishi Electric released the fixed version of the product:

Vendor fix: MELSEC-Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-Q Series Q03/04/06/13/26UDVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Affected, fixed & timeline

Affected:

  • MELSEC-Q Series Q03UDECPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU <=The_first_5_digits_of_serial_No._"26061"
  • … and 7 more

Mitigation: MELSEC-Q Series Q04/06/13/26UDPVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-L Series L02/06/26CPU(-P), L26CPU-(P)BT: firmware versions where the first 5 digits of serial No. "26042" or later

Mitigation: Mitsubishi Electric recommends that users consider replacing with MELSEC iQ-R Series.

Mitigation: Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:

Mitigation: Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.

Mitigation: Use within a LAN and block access from untrusted networks and hosts through firewalls.

Mitigation: Restrict physical access to the affected product as well as to the personal computers and the network devices that can communicate with it.

Mitigation: Install antivirus software on your personal computer that can access the affected product.

Mitigation: For specific additional details, see Mitsubishi Electric advisory 2023-024.

CVE-2024-1915 CWE-468 Incorrect Pointer Scaling 9.8 Critical In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet

Mitigation: Mitsubishi Electric released the fixed version of the product:

Vendor fix: MELSEC-Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-Q Series Q03/04/06/13/26UDVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Affected, fixed & timeline

Affected:

  • MELSEC-Q Series Q03UDECPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU <=The_first_5_digits_of_serial_No._"26061"
  • … and 7 more

Mitigation: MELSEC-Q Series Q04/06/13/26UDPVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-L Series L02/06/26CPU(-P), L26CPU-(P)BT: firmware versions where the first 5 digits of serial No. "26042" or later

Mitigation: Mitsubishi Electric recommends that users consider replacing with MELSEC iQ-R Series.

Mitigation: Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:

Mitigation: Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.

Mitigation: Use within a LAN and block access from untrusted networks and hosts through firewalls.

Mitigation: Restrict physical access to the affected product as well as to the personal computers and the network devices that can communicate with it.

Mitigation: Install antivirus software on your personal computer that can access the affected product.

Mitigation: For specific additional details, see Mitsubishi Electric advisory 2023-024.

CVE-2024-1916 CWE-190 Integer Overflow or Wraparound 9.8 Critical In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet

Mitigation: Mitsubishi Electric released the fixed version of the product:

Vendor fix: MELSEC-Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-Q Series Q03/04/06/13/26UDVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Affected, fixed & timeline

Affected:

  • MELSEC-Q Series Q03UDECPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU <=The_first_5_digits_of_serial_No._"26061"
  • … and 7 more

Mitigation: MELSEC-Q Series Q04/06/13/26UDPVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-L Series L02/06/26CPU(-P), L26CPU-(P)BT: firmware versions where the first 5 digits of serial No. "26042" or later

Mitigation: Mitsubishi Electric recommends that users consider replacing with MELSEC iQ-R Series.

Mitigation: Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:

Mitigation: Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.

Mitigation: Use within a LAN and block access from untrusted networks and hosts through firewalls.

Mitigation: Restrict physical access to the affected product as well as to the personal computers and the network devices that can communicate with it.

Mitigation: Install antivirus software on your personal computer that can access the affected product.

Mitigation: For specific additional details, see Mitsubishi Electric advisory 2023-024.

CVE-2024-1917 CWE-190 Integer Overflow or Wraparound 9.8 Critical In the Mitsubishi Electric MELSEC-Q/L Series a remote attacker may be able to execute malicious code on a target product by sending a specially crafted packet

Mitigation: Mitsubishi Electric released the fixed version of the product:

Vendor fix: MELSEC-Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-Q Series Q03/04/06/13/26UDVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Affected, fixed & timeline

Affected:

  • MELSEC-Q Series Q03UDECPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q10UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q20UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q50UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q100UDEHCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q03UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q06UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q13UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q26UDVCPU <=The_first_5_digits_of_serial_No._"26061"
  • MELSEC-Q Series Q04UDPVCPU <=The_first_5_digits_of_serial_No._"26061"
  • … and 7 more

Mitigation: MELSEC-Q Series Q04/06/13/26UDPVCPU: firmware versions where the first 5 digits of serial No. "26062" or later

Mitigation: MELSEC-L Series L02/06/26CPU(-P), L26CPU-(P)BT: firmware versions where the first 5 digits of serial No. "26042" or later

Mitigation: Mitsubishi Electric recommends that users consider replacing with MELSEC iQ-R Series.

Mitigation: Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:

Mitigation: Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.

Mitigation: Use within a LAN and block access from untrusted networks and hosts through firewalls.

Mitigation: Restrict physical access to the affected product as well as to the personal computers and the network devices that can communicate with it.

Mitigation: Install antivirus software on your personal computer that can access the affected product.

Mitigation: For specific additional details, see Mitsubishi Electric advisory 2023-024.

Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2024-0802 9.8 Critical Mitsubishi Electric Corporation MELSEC-Q Series Q03UDECPU Incorrect Pointer Scaling vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unauthenti…
CVE-2024-0803 9.8 Critical Mitsubishi Electric Corporation MELSEC-Q Series Q03UDECPU Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unaut…
CVE-2024-1915 9.8 Critical Mitsubishi Electric Corporation MELSEC-Q Series Q03UDECPU Incorrect Pointer Scaling vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unauthenti…
CVE-2024-1916 9.8 Critical Mitsubishi Electric Corporation MELSEC-Q Series Q03UDECPU Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unaut…
CVE-2024-1917 9.8 Critical Mitsubishi Electric Corporation MELSEC-Q Series Q03UDECPU Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unaut…

Named by the advisory itself. Each CVE links to its tracked detail page.

Vendors Named in This Publication

No KEV-catalogued vendors are named in this publication.