CVE-2023-4562
criticalpriority · track · 36EPSS 0.012 · 68 %ileEURUUSEPSS · scored 2026-10-27
Improper Authentication vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to obtain sequence programs from the product or write malicious sequence programs or improper data in the product without authentication by sending illegitimate messages.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationMELSEC-F FX3G-xMy/ES-A x=14,24,40,60, y=T,Rcisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3G-xMy/z x=14,24,40,60, y=T,R, z=ES,ESS,DS,DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3GA-xMy-CM x=24,40,60, y=T,Rcisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3GC-32MT/D, FX3GC-32MT/DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3GE-xMy/z x=24,40, y=T,R, z=ES,ESS,DS,DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3S-30My/z-2AD y=T,R, z=ES,ESScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3S-xMy/z x=10,14,20,30, y=T,R, z=ES,ESS,DS,DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3SA-xMy-CM x=10,14,20,30, y=T,Rcisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3U-32MS/ES, FX3U-64MS/EScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3U-xMy/ES-A x=16,32,48,64,80,128, y=T,Rcisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3UC-16MR/D-T, FX3UC-16MR/DS-Tcisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3UC-16MT/D-P4, FX3UC-16MT/DSS-P4cisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3UC-32MT-LT, FX3UC-32MT-LT-2cisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F FX3UC-xMT/z x=16,32,64,96, z=D,DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F series FX3U-32MR/UA1, FX3U-64MR/UA1cisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
- MitigationMELSEC-F series FX3U-xMy/z x=16,32,48,64,80,128, y=T,R, z=ES,ESS,DS,DSScisa_csaf_ot
Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (397)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-23-285-13Mitsubishi Electric MELSEC-F Series2023-10-12icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability may allow a remote attacker to obtain sequence programs from the product, write malicious sequence programs, or improper data in the product without authentication.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-4562/cnnvd
- https://jvn.jp/vu/JVNVU90509290/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.5999cnnvd
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13cnnvd
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdfcnnvd
- https://jvn.jp/vu/JVNVU90509290/enisa_euvd
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13enisa_euvd
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdfenisa_euvd
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