Denial-of-Service（DoS） Vulnerability in Web server function on MELSEC Series CPU module
CVE-2023-4625

5.3MEDIUM

Key Information:

Vendor
Mitsubishi Electric Corporation
Status
Melsec Iq-f Series Fx5u-32mt/es
Melsec Iq-f Series Fx5u-64mt/es
Melsec Iq-f Series Fx5u-80mt/es
Melsec Iq-f Series Fx5u-32mr/es
Vendor
CVE Published:
6 November 2023

Summary

Improper Restriction of Excessive Authentication Attempts vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F/iQ-R Series CPU modules Web server function allows a remote unauthenticated attacker to prevent legitimate users from logging into the Web server function for a certain period after the attacker has attempted to log in illegally by continuously attempting unauthorized login to the Web server function. The impact of this vulnerability will persist while the attacker continues to attempt unauthorized login.

Affected Version(s)

MELSEC iQ-F Series FX5S-30MR/ES all versions

MELSEC iQ-F Series FX5S-30MT/ES all versions

MELSEC iQ-F Series FX5S-30MT/ESS all versions

References

https://www.mitsubishielectric.com/en/psirt/vulnerability...
vendor-advisory
https://jvn.jp/vu/JVNVU94620134
government-resource
https://www.cisa.gov/news-events/ics-advisories/icsa-23-3...
government-resource

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.