How severe is CVE-2022-29831?

CVE-2022-29831 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-2022-29831 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29831?

CVE-2022-29831 affects Mitsubishielectric Gx Works3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-29831?

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-2022-29831 published?

CVE-2022-29831 was published on 2022-11-25 and last updated on 2026-06-17.

CVE-2022-29831

CVE-2022-29831 is a high-severity vulnerability in Mitsubishielectric Gx Works3 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-798.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Mitsubishielectric Gx Works3
Published: 2022-11-25
Last modified: 2026-06-17

Description

Use of Hard-coded Password vulnerability in Mitsubishi Electric Corporation GX Works3 versions from 1.015R to 1.095Z allows a remote unauthenticated attacker to obtain information about the project file for MELSEC safety CPU modules.

Frequently asked questions

What is CVE-2022-29831?: Use of Hard-coded Password vulnerability in Mitsubishi Electric Corporation GX Works3 versions from 1.015R to 1.095Z allows a remote unauthenticated attacker to obtain information about the project file for MELSEC safety CPU modules.
How severe is CVE-2022-29831?: CVE-2022-29831 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-2022-29831 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29831?: CVE-2022-29831 affects Mitsubishielectric Gx Works3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-29831?: 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-2022-29831 published?: CVE-2022-29831 was published on 2022-11-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mitsubishielectric:gx_works3:*:*:*:*:*:*:*:*

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