CVE-2025-8531
Sept. 19, 2025, 4 p.m.
6.8
Medium
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishi |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-130
Improper Handling of Length Parameter Inconsistency
The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | mitsubishi | electric_corporation | melsec-q_series | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q03udvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q04udvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q06udvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q13udvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q26udvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q04udpvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q06udpvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q13udpvcpu | / | / | / | / | / | / | / |
| a | mitsubishi | electric_corporation | q26udpvcpu | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: HIGH
- Privileges Required: NONE
- Scope: CHANGED
- Confidentiality Impact: NONE
- Integrity Impact: NONE
- Availability Impact: HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Timeline
Published: Sept. 19, 2025, 10:15 a.m.
Last Modified: Sept. 19, 2025, 4 p.m.
Last Modified: Sept. 19, 2025, 4 p.m.
Status : Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.