CVE-2020-7487

Adjacent code execution via unauthenticated data acceptance

Published Apr 22, 2020 · Updated Aug 4, 2024

Insufficient data-authenticity verification in Schneider Electric Modicon M218, M241, M251, and M258 allows attackers to execute code. Schneider Electric has not disclosed the affected data path or the operation that accepts unauthenticated data as authentic. Exploitation requires adjacent-network access, high complexity, and user interaction and can modify controller state or interrupt operation.

CVSS severity5.4
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient data-authenticity verification in Schneider Electric Modicon M218, M241, M251, and M258 allows attackers to execute code. Schneider Electric has not disclosed the affected data path or the operation that accepts unauthenticated data as authentic. Exploitation requires adjacent-network access, high complexity, and user interaction and can modify controller state or interrupt operation.

The record

CVE
CVE-2020-7487
Published
Apr 22, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-345
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.4Schneider ElectricCVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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