CVE-2021-20594

Description

Exposure of Sensitive Information to an Unauthorized Actor 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 acquire legitimate user names registered in the module via brute-force attack on user names.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://jvn.jp/vu/JVNVU98578731/index.html ↗
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf ↗
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01 ↗