CVE-2025-8531

MEDIUM EPSS 56.8%
Published Sep 19, 20259mo ago · Modified Jun 17, 20261w ago
6.8 CVSS 3.1
Medium
Find Similar
Published Sep 19, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU, Q04UDPVCPU, Q06UDPVCPU, Q13UDPVCPU, and Q26UDPVCPU with the first 5 digits of serial No. "24082" to "27081" allows a remote attacker to cause an integer underflow by sending specially crafted packets to the affected product to stop Ethernet communication and the execution of control programs on the product, when the user authentication function is enabled. The user authentication function is enabled by default only when settings are configured by GX Works2, which complies with the Cybersecurity Law of the People's Republic of China, and is normally disabled.

CVSS Details

Base Score
6.8
Exploitability
2.2
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
56.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-130

References 3

  • jvn.jp https://jvn.jp/vu/JVNVU97846038/
  • cisa.gov https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-02
  • mitsubishielectric.com https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-013_en.pdf

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.