CVE-2018-7852

HIGH
7.5
CVSS Score
Published: May 22, 2019 at 08:01 PM UTC
Updated: June 17, 2026 at 02:03 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
HIGH7.5
Exploit prediction
EPSS 4%
SSVC
PoC

Description

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when an invalid private command parameter is sent to the controller over Modbus.

Affected

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

All versions
schneider-electric-modicon-m340 (same device)
All versions
schneider-electric-modicon-m580 (same device)
All versions
schneider-electric-modicon-premium (same device)
All versions
schneider-electric-modicon-quantum (same device)

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755CWE-248

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