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CVE-2018-7857

HIGH
7.5
CVSS Score
Published: May 22, 2019 at 08:04 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 2%

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 a possible Denial of Service when writing out of bounds variables to 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 < 3.01
Affected range stops below 3.01, so it looks safe — our inference, not a vendor statement
schneider-electric-modicon-m340 (same device)
Modicon M580 Firmware· Schneider Electric
95%
v < 2.80
Affected range stops below 2.80, 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
Affected range stops below 3.20, so it looks safe — our inference, not a vendor statement
schneider-electric-modicon-premium (same device)
Modicon Quantum Firmware· Schneider Electric
95%
v < 3.60
Affected range stops below 3.60, so it looks safe — our inference, not a vendor statement
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_MISCMitigationVendor 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-2019-0768

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

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