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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.

PUBLISHED Reserved 2025-08-04 | Published 2025-09-19 | Updated 2025-09-24 | Assigner Mitsubishi




MEDIUM: 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Problem types

CWE-130 Improper Handling of Length Parameter Inconsistency

Product status

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

Default status
unaffected

The first 5 digits of serial No. "24082" to "27081"
affected

References

www.mitsubishielectric.com/...nerability/pdf/2025-013_en.pdf vendor-advisory

jvn.jp/vu/JVNVU97846038/ government-resource

www.cisa.gov/news-events/ics-advisories/icsa-25-266-02 government-resource

cve.org (CVE-2025-8531)

nvd.nist.gov (CVE-2025-8531)

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