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MEDIUM · 5.3

CVE-2021-20598

Overly Restrictive Account Lockout Mechanism 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 una...

Vulnerability Description

Overly Restrictive Account Lockout Mechanism 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 lockout a legitimate user by continuously trying login with incorrect password.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
MitsubishielectricR08Sfcpu FirmwareAll versions
MitsubishielectricR08Sfcpu-
MitsubishielectricR16Sfcpu FirmwareAll versions
MitsubishielectricR16Sfcpu-
MitsubishielectricR32Sfcpu FirmwareAll versions
MitsubishielectricR32Sfcpu-
MitsubishielectricR120Sfcpu FirmwareAll versions
MitsubishielectricR120Sfcpu-
MitsubishielectricR08Psfcpu FirmwareAll versions
MitsubishielectricR08Psfcpu-
MitsubishielectricR16Psfcpu FirmwareAll versions
MitsubishielectricR16Psfcpu-
MitsubishielectricR32Psfcpu FirmwareAll versions
MitsubishielectricR32Psfcpu-
MitsubishielectricR120Psfcpu FirmwareAll versions
MitsubishielectricR120Psfcpu-

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2021-20598?

CVE-2021-20598 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Overly Restrictive Account Lockout Mechanism 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 una...

How severe is CVE-2021-20598?

CVE-2021-20598 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20598?

Check the references section above for vendor advisories and patch information. Affected products include: Mitsubishielectric R08Sfcpu Firmware, Mitsubishielectric R08Sfcpu, Mitsubishielectric R16Sfcpu Firmware, Mitsubishielectric R16Sfcpu, Mitsubishielectric R32Sfcpu Firmware.