How severe is CVE-2023-0457?

CVE-2023-0457 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-0457 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0457?

CVE-2023-0457 primarily affects Mitsubishielectric Fx5uc-32mr/ds-ts Firmware. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0457?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-0457 published?

CVE-2023-0457 was published on 2023-03-03 and last updated on 2026-06-17.

CVE-2023-0457

CVE-2023-0457 is a high-severity vulnerability in Mitsubishielectric Fx5uc-32mr/ds-ts Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Mitsubishielectric Fx5uc-32mr/ds-ts Firmware
Published: 2023-03-03
Last modified: 2026-06-17

Description

Plaintext Storage of a Password vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series, MELSEC iQ-R Series, MELSEC-Q Series and MELSEC-L Series allows a remote unauthenticated attacker to disclose plaintext credentials stored in project files and login into FTP server or Web server.

Frequently asked questions

What is CVE-2023-0457?: Plaintext Storage of a Password vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series, MELSEC iQ-R Series, MELSEC-Q Series and MELSEC-L Series allows a remote unauthenticated attacker to disclose plaintext credentials stored in project files and login into FTP server or Web server.
How severe is CVE-2023-0457?: CVE-2023-0457 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-0457 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0457?: CVE-2023-0457 primarily affects Mitsubishielectric Fx5uc-32mr/ds-ts Firmware. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0457?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-0457 published?: CVE-2023-0457 was published on 2023-03-03 and last updated on 2026-06-17.

References

Affected products (38)

cpe:2.3:o:mitsubishielectric:fx5uc-32mr\/ds-ts_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/dss_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/dss-ts_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/ds-ts_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-64mt\/d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-64mt\/dss_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-96mt\/d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uc-96mt\/dss_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-24mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-24mr\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-24mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-24mt\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-24mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-40mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-40mr\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-40mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-40mt\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-40mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-60mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-60mr\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-60mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-60mt\/es-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5uj-60mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-30mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-30mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-30mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-40mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-40mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-40mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-60mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-60mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-60mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-80mr\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-80mt\/es_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5s-80mt\/ess_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5-enet_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:fx5-enet\/ip_firmware:-:*:*:*:*:*:*:*

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