How severe is CVE-2020-7487?

CVE-2020-7487 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-2020-7487 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7487?

CVE-2020-7487 primarily affects Schneider-electric Ecostruxure Machine Expert. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-7487?

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-2020-7487 published?

CVE-2020-7487 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2020-7487

CVE-2020-7487 is a critical-severity vulnerability in Schneider-electric Ecostruxure Machine Expert with a CVSS 3.x base score of 9.8. 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-345.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Schneider-electric Ecostruxure Machine Expert
Published: 2020-04-22
Last modified: 2026-06-17

Description

A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists which could allow the attacker to execute malicious code on the Modicon M218, M241, M251, and M258 controllers.

Frequently asked questions

What is CVE-2020-7487?: A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists which could allow the attacker to execute malicious code on the Modicon M218, M241, M251, and M258 controllers.
How severe is CVE-2020-7487?: CVE-2020-7487 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-2020-7487 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7487?: CVE-2020-7487 primarily affects Schneider-electric Ecostruxure Machine Expert. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-7487?: 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-2020-7487 published?: CVE-2020-7487 was published on 2020-04-22 and last updated on 2026-06-17.

References

https://www.se.com/ww/en/download/document/SEVD-2020-105-02

Affected products (7)

cpe:2.3:a:schneider-electric:ecostruxure_machine_expert:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:somachine:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:somachine_motion:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m218_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m258_firmware:*:*:*:*:*:*:*:*

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