How severe is CVE-2023-6374?

CVE-2023-6374 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-6374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6374?

CVE-2023-6374 affects Mitsubishielectric Melsec Ws0-geth00200 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6374?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-6374 have an EU (EUVD) identifier?

Yes. CVE-2023-6374 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58615.

When was CVE-2023-6374 published?

CVE-2023-6374 was published on 2024-01-30 and last updated on 2026-06-17.

CVE-2023-6374

CVE-2023-6374 is a medium-severity vulnerability in Mitsubishielectric Melsec Ws0-geth00200 Firmware with a CVSS 3.x base score of 5.9. 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-294.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58615
Weakness: CWE-294
Affected product: Mitsubishielectric Melsec Ws0-geth00200 Firmware
Published: 2024-01-30
Last modified: 2026-06-17

Description

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a result, the remote attacker who has logged in illegally may be able to disclose or tamper with the programs and parameters in the modules.

Frequently asked questions

What is CVE-2023-6374?: Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a result, the remote attacker who has logged in illegally may be able to disclose or tamper with the programs and parameters in the modules.
How severe is CVE-2023-6374?: CVE-2023-6374 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-6374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6374?: CVE-2023-6374 affects Mitsubishielectric Melsec Ws0-geth00200 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6374?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6374 have an EU (EUVD) identifier?: Yes. CVE-2023-6374 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58615.
When was CVE-2023-6374 published?: CVE-2023-6374 was published on 2024-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:mitsubishielectric:melsec_ws0-geth00200_firmware:-:*:*:*:*:*:*:*

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