VIR Vulnerability Intelligence Relay

CVE-2020-7564

high
Published 2020-11-18 · Modified 2026-05-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
8.8

Description

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.

Predictions

Exploit likelihood
92%
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
VendorProductVersionsFixed
schneider-electricmodicon_tsxety4103-
schneider-electricmodicon_tsxety5103-
schneider-electricmodicon_tsxp574634-
schneider-electricmodicon_tsxp575634-
schneider-electricmodicon_tsxp576634-
schneider-electricmodicon_quantum_140noe77101-
schneider-electricmodicon_quantum_140noe77111-
schneider-electricmodicon_quantum_140noc78100-
schneider-electricmodicon_quantum_140cpu65150-
schneider-electricmodicon_quantum_140cpu65150c-
schneider-electricmodicon_quantum_140cpu65160c-
schneider-electricmodicon_quantum_140cpu65160-
schneider-electricmodicon_m340_bmx_p34-2010-
schneider-electricmodicon_m340_bmx_p34-2030-
schneider-electricmodicon_m340_bmx_noc_0401-
schneider-electricmodicon_m340_bmx_noe_0100-
schneider-electricmodicon_m340_bmx_noe_0100h-
schneider-electricmodicon_m340_bmx_noe_0110-
schneider-electricmodicon_m340_bmx_noe_0110h-
schneider-electricmodicon_m340_bmx_nor_0200h-

References

CWEs

CWE-120

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

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