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CVE-2019-6808

CRITICAL
9.8
CVSS Score
Published: May 22, 2019 at 08:05 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
8 products affected across 1 vendorModicon M580 FirmwareModicon M340 FirmwareModicon Quantum Firmware

Using Modicon M580 Modicon M340 Modicon Quantum Modicon Premium by N/A?

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Severity
CRITICAL9.8
Exploit prediction
EPSS 8%

Description

A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a remote code execution by overwriting configuration settings of the controller over Modbus.

Affected

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

Modicon M340 Firmware· Schneider Electric
95%
v < 3.10
Affected range stops below 3.10, so it looks safe — our inference, not a vendor statement
schneider-electric-modicon-m340 (same device)
Modicon M580 Firmware· Schneider Electric
95%
v < 2.90
Affected range stops below 2.90, so it looks safe — our inference, not a vendor statement
schneider-electric-modicon-m580 (same device)
Modicon Premium Firmware· Schneider Electric
95%
v ≤ 3.20
schneider-electric-modicon-premium (same device)
Modicon Quantum Firmware· Schneider Electric
95%
v ≤ 3.60
schneider-electric-modicon-quantum (same device)
Modicon M340· Schneider Electric
60%
All versions
Modicon M580· Schneider Electric
60%
All versions
Modicon Premium· Schneider Electric
60%
All versions
Modicon Quantum· Schneider Electric
60%
All versions

Remediation

No guide yet

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

Patch and advisory references

References (2)

x_refsource_MISCx_refsource_CONFIRMMitigationVendor Advisory
Source: [email protected]
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0771

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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