Unrated severityNVD Advisory· Published Aug 6, 2021· Updated Aug 3, 2024

CVE-2021-20597

Description

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mitsubishi Electric/MELSEC iQ-R series Safety CPU modulesdescription
Mitsubishielectric/MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPUllm-create
Range: <=26

Patches

Vulnerability mechanics

References

jvn.jp/vu/JVNVU98578731/index.htmlmitre
www.cisa.gov/uscert/ics/advisories/icsa-21-250-01mitre
www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdfmitre

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