CVE-2021-20597
CRITICALMitsubishi Electric MELSEC iQ-R - Info Disclosure
Title source: llmDescription
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.
References (3)
Core 3
Core References
Third Party Advisory
https://jvn.jp/vu/JVNVU98578731/index.html
Third Party Advisory, US Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01
Scores
CVSS v3
9.1
EPSS
0.0089
EPSS Percentile
75.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-522
Status
published
Products (8)
mitsubishielectric/r08psfcpu_firmware
mitsubishielectric/r08sfcpu_firmware
mitsubishielectric/r120psfcpu_firmware
mitsubishielectric/r120sfcpu_firmware
mitsubishielectric/r16psfcpu_firmware
mitsubishielectric/r16sfcpu_firmware
mitsubishielectric/r32psfcpu_firmware
mitsubishielectric/r32sfcpu_firmware
Published
Aug 06, 2021
Tracked Since
Feb 18, 2026