01 Record
CVE-2023-1424
Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module
CriticalPUBLISHEDCNA: Mitsubishi
CNA base score10.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
02 Description
Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module
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.
- EPSS probability
- 3.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.4% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. 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
- 2023-05-24 04:39Z3 YR AGO
- Last updated
- 2025-03-05 18:59Z1 YR AGO
- Reserved
- 2023-03-16
- Assigning CNA
- Mitsubishi
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 10.0)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
- Data version
- 5.1
- Document digest
- 309719246678e30a08ead9b5f77461aeea3e00c9c0883f836017df74ea624767
05 Affected products
VendorProductVersionsPlatforms
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MR/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MR/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MR/ESSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MR/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MR/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MR/DSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/ESSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/ESSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/ESSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-32MT/DSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-64MT/DSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-96MT/DSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-32MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-64MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-96MT/DSSSerial number 17X**** or later, versions from 1.220 to 1.281—
06 References
- www.mitsubishielectric.comhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-003_en.pdf
- jvn.jphttps://jvn.jp/vu/JVNVU94650413
- www.cisa.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-23-143-03
- www.talosintelligence.comhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1727