01 Record

CVE-2024-0803

Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unauthenticated attacker to execute malicious code on a

CriticalPUBLISHEDCNA: Mitsubishi

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unauthenticated attacker to execute malicious code on a

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.04% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.7% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-03-14 23:59Z2 YR AGO

Last updated

2024-08-27 19:56Z2 YR AGO

Reserved

2024-01-23

Assigning CNA

Mitsubishi

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

845e325d8a7d352770f57b086bf31d40818ad902ac7dab63bf03b5503edb8e70

05 Affected products

VendorProductVersionsPlatforms

Mitsubishi Electric CorporationMELSEC-Q Series Q03UDECPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q04UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q06UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q10UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q13UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q20UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q26UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q50UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q100UDEHCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q03UDVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q04UDVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q06UDVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q13UDVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q26UDVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q04UDPVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q06UDPVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q13UDPVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-Q Series Q26UDPVCPUThe first 5 digits of serial No. "26061" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L02CPUThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L06CPUThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L26CPUThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L02CPU-PThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L06CPU-PThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L26CPU-PThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L26CPU-BTThe first 5 digits of serial No. "26041" and prior—

Mitsubishi Electric CorporationMELSEC-L Series L26CPU-PBTThe first 5 digits of serial No. "26041" and prior—

mitsubishielectricmelsec_q-q03udecpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q04udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q06udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q10udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q13udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q20udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q26udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q50udehcpu0 to < xxxxx26061—

mitsubishielectricmelsec_q-q100udehcpu0 to < xxxxx26061—

mitsubishimelsec_q03udvcpu0 to < xxxxx26061—

mitsubishimelsec_q04udvcpu0 to < xxxxx26061—

mitsubishimelsec_q06udvcpu0 to < xxxxx26061—

mitsubishimelsec_q13udvcpu0 to < xxxxx26061—

mitsubishimelsec_q26udvcpu0 to < xxxxx26061—

mitsubishimelsec_q06udpvcpu0 to < xxxxx26061—

mitsubishimelsec_q13udpvcpu0 to < xxxxx26061—

mitsubishimelsec_q26udpvcpu0 to < xxxxx26061—

mitsubishielectricl02cpu-p0 to < xxxxx26041—

mitsubishimelsec_l06cpu\(-p\)0 to < xxxxx26041—

mitsubishimelsec_l26cpu\(-p\)0 to < xxxxx26041—

mitsubishielectricmelsec_l02cpu-p0 to < xxxxx26041—

mitsubishielectricmelsec_l06cpu-p0 to < xxxxx26041—

mitsubishielectricmelsec_l26cpu-p0 to < xxxxx26041—

mitsubishielectricl26cpu-bt0 to < xxxxx26041—

mitsubishielectricmelsec_l26cpu-pbt0 to < xxxxx26041—

06 References

www.mitsubishielectric.comhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-024_en.pdfvendor-advisory
jvn.jphttps://jvn.jp/vu/JVNVU99690199/government-resource
www.cisa.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-24-074-14government-resource

01 Record index

CVE-2024-0803

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-0803

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References