CVE-2025-8531 (GCVE-0-2025-8531)

Vulnerability from cvelistv5 – Published: 2025-09-19 09:30 – Updated: 2025-09-24 05:39
VLAI?
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.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
Impacted products
Vendor Product Version
Mitsubishi Electric Corporation MELSEC-Q Series Q03UDVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q04UDVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q06UDVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q13UDVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q26UDVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q04UDPVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q06UDPVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q13UDPVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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    Mitsubishi Electric Corporation MELSEC-Q Series Q26UDPVCPU Affected: The first 5 digits of serial No. "24082" to "27081"
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.