CVE-2019-6820

high

Published 2019-05-22 · Modified 2026-05-28

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CVSS v3

8.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.2

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration (IP address, network mask and gateway IP address) when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC drive controller, Modicon M241, Modicon M251, Modicon M258, Modicon LMC058, Modicon LMC078, PacDrive Eco ,PacDrive Pro, PacDrive Pro2

Predictions

Exploit likelihood

88%

Patch ETA

—

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 — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → 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

Vendor	Product	Versions
schneider-electric	modicon_m100	`-`
schneider-electric	modicon_m200	`-`
schneider-electric	modicon_m221	`-`
schneider-electric	atv_imc_drive_controller	`-`
schneider-electric	modicon_m241	`-`
schneider-electric	modicon_m251	`-`
schneider-electric	modicon_m258	`-`
schneider-electric	modicon_lmc058	`-`
schneider-electric	modicon_lmc078	`-`
schneider-electric	pacdrive_eco	`-`
schneider-electric	pacdrive_pro	`-`
schneider-electric	pacdrive_pro2	`-`

References

https://www.schneider-electric.com/en/download/document/SEVD-2019-134-02/

CWEs

CWE-306

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

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