CVE-2023-4562

high-risk
Published 2023-10-13

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.

Do I need to act?

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0.23% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Fx3G-14 Mr\/Ds Firmware
Fx3G-14 Mr\/Es Firmware
Fx3G-14 Mt\/Ds Firmware
Fx3G-14 Mt\/Dss Firmware
Fx3G-14 Mt\/Es Firmware
Fx3G-14 Mt\/Ess Firmware
Fx3G-14Mr\/Ds Firmware
Fx3G-14Mr\/Es Firmware
Fx3G-14Mr\/Es-A Firmware
Fx3G-14Mt\/Ds Firmware
Fx3G-14Mt\/Dss Firmware
Fx3G-14Mt\/Es Firmware
Fx3G-14Mt\/Es-A Firmware
Fx3G-14Mt\/Ess Firmware
Fx3G-232Adp\(-Mb\) Firmware
Fx3G-24 Mr\/Ds Firmware
Fx3G-24 Mr\/Es Firmware
Fx3G-24 Mt\/Ds Firmware
Fx3G-24 Mt\/Dss Firmware
Fx3G-24 Mt\/Es Firmware

Affected Vendors

Mitsubishielectric

References (6)

Third Party Advisory https://jvn.jp/vu/JVNVU90509290/
Third Party Advisory https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13
Vendor Advisory https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdf
Third Party Advisory https://jvn.jp/vu/JVNVU90509290/
Third Party Advisory https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13
Vendor Advisory https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdf
65
/ 100
high-risk
Severity 31/34 · Critical
Exploitability 1/34 · Minimal
Exposure 33/34 · Critical