CVE-2019-6857

high
Published 2020-01-06 ยท Modified 2026-05-29
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
7.5

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium (see security notification for specific versions) which could cause a Denial of Service of the controller when reading specific memory blocks using Modbus TCP.

Predictions

Exploit likelihood
83%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

VendorProductVersionsFixed
schneider-electricmodicon_m580-
schneider-electricmodicon_m340-
schneider-electrictsxh5744m-
schneider-electrictsxh5724m-
schneider-electrictsxp576634m_-
schneider-electrictsxp57554m-
schneider-electrictsxp575634m-
schneider-electrictsxp57454m-
schneider-electrictsxp574634m-
schneider-electrictsxp57354m-
schneider-electrictsxp573634m-
schneider-electrictsxp57304m-
schneider-electrictsxp57254m-
schneider-electrictsxp572634m-
schneider-electrictsxp57204m_-
schneider-electrictsxp571634m-
schneider-electrictsxp57154m-
schneider-electrictsxp57104m-
schneider-electric140cpu65150-
schneider-electric140cpu65160-
schneider-electric140cpu65260-
schneider-electric140cpu67261-
schneider-electric140cpu67060-
schneider-electric140cpu67160-
schneider-electric140cpu67260-
schneider-electric140cpu65860-
schneider-electric140cpu67861-
schneider-electric140cpu65160s-
schneider-electric140cpu67160s-

References

CWEs

CWE-754

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.