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CVE-2018-7847
A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon…
Critical9.8EPSS 3.8%
- Published
- Updated
- Reserved
- Assigned by
- schneider
Description
A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service or potential code execution by overwriting configuration settings of the controller over Modbus.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.8% · top 9.9% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Multiple Vulnerabilities
- CWE-287 (opens in a new tab)All about CWE-287 and its CVEs
Affected products
Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
- affected Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
References (3)
- https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0742 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0743 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-7847)Record last updated .