How severe is CVE-2020-12011?

CVE-2020-12011 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12011 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12011?

CVE-2020-12011 primarily affects Mitsubishielectric Mc Works. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12011?

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

When was CVE-2020-12011 published?

CVE-2020-12011 was published on 2020-07-16 and last updated on 2026-06-17.

CVE-2020-12011

CVE-2020-12011 is a critical-severity vulnerability in Mitsubishielectric Mc Works with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 29% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 29% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Mitsubishielectric Mc Works
Published: 2020-07-16
Last modified: 2026-06-17

Description

A specially crafted communication packet sent to the affected systems could cause a denial-of-service condition or allow remote code execution. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; GenBroker32 version 9.5 and prior.

Frequently asked questions

What is CVE-2020-12011?: A specially crafted communication packet sent to the affected systems could cause a denial-of-service condition or allow remote code execution. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; GenBroker32 version 9.5 and prior.
How severe is CVE-2020-12011?: CVE-2020-12011 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12011 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12011?: CVE-2020-12011 primarily affects Mitsubishielectric Mc Works. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12011?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-12011 published?: CVE-2020-12011 was published on 2020-07-16 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:mitsubishielectric:mc_works:*:*:*:*:*:*:*:*
cpe:2.3:a:mitsubishielectric:mc_works32:9.50.255.02:*:*:*:*:*:*:*
cpe:2.3:a:iconics:energy_analytix:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:facility_analytix:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:genesis64:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:hyper_historian:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:mobilehmi:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:quality_analytix:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:smart_energy_analytix:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:bizviz:-:*:*:*:*:*:*:*
cpe:2.3:a:iconics:genesis32:-:*:*:*:*:*:*:*

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