CVE-2021-20594

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.

Summary:

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names.

Reference Links(if available):

  • https://jvn.jp/vu/JVNVU98578731/index.html
  • https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf
  • CVSS Score (if available)

    v2: / MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

    Links to Exploits(if available)