CVE-2019-6819
Summary
| CVE | CVE-2019-6819 |
|---|---|
| State | PUBLISHED |
| Assigner | schneider |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2019-05-22 20:29:02 UTC |
| Updated | 2026-05-29 15:16:17 UTC |
| Description | A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists which could cause a possible Denial of Service when specific Modbus frames are sent to the controller in the products: Modicon M340 - firmware versions prior to V3.01, Modicon M580 - firmware versions prior to V2.80, All firmware versions of Modicon Quantum and Modicon Premium. |
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: 0.004680000 probability, percentile 0.648170000 (date 2026-06-02)
Problem Types: CWE-754 | CWE-754 CWE-754: Improper Check for Unusual or Exceptional Conditions
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | ADP | DECLARED | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | Modicon Controllers Modicon M340 - Firmware Versions Prior To V3.01 Modicon M580 - Firmware Versions Prior To V2.80 All Firmware Versions Of Modicon Quantum And Modicon Premium | affected Modicon Controllers, Modicon M340 - firmware versions prior to V3.01 Modicon M580 - firmware versions prior to V2.80 All firmware versions of Modicon Quantum and Modicon Premium | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Schneider Electric Modicon Controllers CVE-2019-6819 Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Broken Link |
| Security Notification - Modicon Controllers V1.1 | Schneider Electric | af854a3a-2127-422b-91ae-364da2661108 | www.schneider-electric.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 590477 Schneider Electric Modicon Controllers DoS Vulnerability(ICSA-19-183-01)