Exposure of resource to wrong sphere in Modicon M580 Modicon M340 Modicon Quantum Modicon…
Priority HIGH 65CWE-668Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
Why it matters now
EPSS 0.29575 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Modicon M580 Modicon M340 Modicon Quantum Modicon Premium | Modicon M580 Modicon M340 Modicon Quantum Modicon Premium | — | No fix listed | CNA |
- Modicon M580 Modicon M340 Modicon Quantum Modicon Premium Vendor— Affected Modicon M580 Modicon M340 Modicon Quantum Modicon Premium Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-7846
- 2026-10-03 Alias added: GHSA-hvj5-x43r-qg3f
References
More Schneider Electric Modicon M340 Firmware vulnerabilities
- TI-2019-04862 Improper handling of exceptional conditions in Schneider Electric Modicon M580 CVSS 3.1HIGH 7.5
- TI-2018-05690 Improper handling of exceptional conditions in Modicon M580 Modicon M340 Modicon Quantum… CVSS 3.1HIGH 7.5
- TI-2018-05680 Authentication bypass by spoofing in Modicon M580 Modicon M340 Modicon Quantum Modicon… CVSS 3.1CRITICAL 9.8
- TI-2019-04884 Information disclosure in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum CVSS 3.1HIGH 7.5
- TI-2019-04843 Missing authentication in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium CVSS 3.1CRITICAL 9.8
- TI-2018-05685 Improper authentication in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-7846 · CVE Program
- CVE-2018-7846 · NVD
- FIRST EPSS
- GHSA-hvj5-x43r-qg3f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences