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Fencer Intel
critical 9.8

CVE-2018-7242 json

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all…

published 8y ago modified 4mo ago also EUVD-2018-18981

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules. The algorithm used to encrypt the password is vulnerable to hash collision attacks.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-18-086-01 updated cvss 5.9

Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340, and Modicon BMXNOR0200

  • Schneider Electric Software, LLC Modicon M340 Schneider Electric Software, LLC Modicon Premium Schneider Electric Software, LLC Modicon Quantum Schneider Electric Software, LLC Modicon X80 RTU (BMXNOR0200H)
    affected: mitigation “Schneider Electric recommends that users follow the instructions outlined in the Modicon Controllers Platform - Cyber Security, Reference Manual to install Modicon PLCs securely.” schneider-electric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Schneider Electric SE Modicon Premium, Modicon Quantum, Modicon M340, BMXNOR0200

Classification

Weakness
  • CWE-326 Inadequate Encryption Strength

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.