CVE-2019-6841

MEDIUM
4.9
CVSS Score
Published: October 29, 2019 at 02:46 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
8 products affected across 1 vendorModicon M580 FirmwareModicon M340 FirmwareModicon Bmxcra Firmware

Using Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info) by N/A?

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Severity
MEDIUM4.9
Exploit prediction
EPSS 24%

Description

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
schneider-electric-modicon-140cra (same device)
All versions
schneider-electric-modicon-bmxcra (same device)
All versions
schneider-electric-modicon-m340 (same device)
All versions
schneider-electric-modicon-m580 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755

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