CVE-2025-8531

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Mitsubishi Electric CorporationMELSEC-Q Series Q03UDVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q04UDVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q06UDVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q13UDVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q26UDVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q04UDPVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q06UDPVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q13UDPVCPUThe first 5 digits of serial No. "24082" to "27081"affected
Mitsubishi Electric CorporationMELSEC-Q Series Q26UDPVCPUThe first 5 digits of serial No. "24082" to "27081"affected

Weaknesses

  • CWE-130: CWE-130 Improper Handling of Length Parameter Inconsistency

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References