CVE-2018-7852

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Summary

CVECVE-2018-7852
StatePUBLISHED
Assignerschneider
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-05-22 20:29:01 UTC
Updated2026-05-29 15:16:17 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.156590000 probability, percentile 0.948280000 (date 2026-06-03)

Problem Types: CWE-755 | CWE-248 | Multiple Vulnerabilities | CWE-248 CWE-248 Uncaught Exception

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Schneider-electric Modicon M340 - All All All
Operating System Schneider-electric Modicon M340 Firmware All All All All
Hardware Schneider-electric Modicon M580 - All All All
Operating System Schneider-electric Modicon M580 Firmware All All All All
Hardware Schneider-electric Modicon Premium - All All All
Operating System Schneider-electric Modicon Premium Firmware All All All All
Hardware Schneider-electric Modicon Quantum - All All All
Operating System Schneider-electric Modicon Quantum Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Modicon M580 Modicon M340 Modicon Quantum Modicon Premium affected Modicon M580 Modicon M340 Modicon Quantum Modicon Premium Not specified

References

ReferenceSourceLinkTags
Security Notification - Modicon Controllers (V6.0) | Schneider Electric af854a3a-2127-422b-91ae-364da2661108 www.schneider-electric.com Vendor Advisory
TALOS-2019-0763 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence af854a3a-2127-422b-91ae-364da2661108 www.talosintelligence.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 590771 Schneider Electric Modicon Controllers Multiple Vulnerabilities (SEVD-2019-134-11)
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