Vulnerability Monitor

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CVE-2019-13555

In Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU: serial number 21081 and prior, Q04/06/13/26UDPVCPU: serial number 21081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 21081 and prior, MELSEC-L Series L02/06/26CPU, L26CPU-BT: serial number 21101 and prior, L02/06/26CPU-P, L26CPU-PBT: serial number 21101 and prior, and L02/06/26CPU-CM, L26CPU-BT-CM: serial number 21101 and prior, a remote attacker can cause the FTP service to enter a denial-of-service condition dependent on the timing at which a remote attacker connects to the FTP server on the above CPU modules.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 20 products from mitsubishielectric, from mitsubishielectric, from mitsubishielectric and 17 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-11-13T23:15:11.327

Last Modified

2024-11-21T04:25:08.387

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System mitsubishielectric q03\/04\/06\/13\/26udvcpu_firmware ≤ 21081 Yes
Hardware mitsubishielectric q03\/04\/06\/13\/26udvcpu - No
Operating System mitsubishielectric q04\/06\/13\/26udpvcpu_firmware ≤ 21081 Yes
Hardware mitsubishielectric q04\/06\/13\/26udpvcpu - No
Operating System mitsubishielectric q03udecpu_firmware ≤ 21081 Yes
Hardware mitsubishielectric q03udecpu - No
Operating System mitsubishielectric q04\/06\/10\/13\/20\/26\/50\/100udehcpu_firmware ≤ 21081 Yes
Hardware mitsubishielectric q04\/06\/10\/13\/20\/26\/50\/100udehcpu - No
Operating System mitsubishielectric l02\/06\/26cpu_firmware ≤ 21101 Yes
Hardware mitsubishielectric l02\/06\/26cpu - No
Operating System mitsubishielectric l26cpu-bt_firmware ≤ 21101 Yes
Hardware mitsubishielectric l26cpu-bt - No
Operating System mitsubishielectric l02\/06\/26cpu-p_firmware ≤ 21101 Yes
Hardware mitsubishielectric l02\/06\/26cpu-p - No
Operating System mitsubishielectric l26cpu-pbt_firmware ≤ 21101 Yes
Hardware mitsubishielectric l26cpu-pbt - No
Operating System mitsubishielectric l02\/06\/26cpu-cm_firmware ≤ 21101 Yes
Hardware mitsubishielectric l02\/06\/26cpu-cm - No
Operating System mitsubishielectric l26cpu-bt-cm_firmware ≤ 21101 Yes
Hardware mitsubishielectric l26cpu-bt-cm - No
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mitsubishielectric's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.