Web login denial via repeated invalid attempts
Published Nov 6, 2023 · Updated Feb 27, 2025
Improper authentication-attempt restriction in Mitsubishi Electric MELSEC iQ-F/iQ-R CPU modules allows remote attackers to deny web logins. The Web server locks its login function for a period after repeated invalid authentication attempts, allowing continuous attempts to renew the lockout. No authentication is required, and the effect is limited to blocking legitimate Web server logins while the attempts continue.
Summary
What happened
Improper authentication-attempt restriction in Mitsubishi Electric MELSEC iQ-F/iQ-R CPU modules allows remote attackers to deny web logins. The Web server locks its login function for a period after repeated invalid authentication attempts, allowing continuous attempts to renew the lockout. No authentication is required, and the effect is limited to blocking legitimate Web server logins while the attempts continue.
The record
- CVE
- CVE-2023-4625
- Published
- Nov 6, 2023
- Updated
- Feb 27, 2025
- Vendor
- Mitsubishi Electric Corporation
- Product
- MELSEC iQ-R Series R16ENCPU
- Classifications
- CWE-307, T0814
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 6, 2023CVE publishedPublication date reported by the CVE source.
- Feb 27, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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- Affected versionversion=versions 35 or later
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What is affected?
Published CVSS scores
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Attacks
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Technologies
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