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CVE-2018-7842
A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and…
Critical9.8EPSS 35.0%
- Published
- Updated
- Reserved
- Assigned by
- schneider
Description
A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.
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)
- 35.0% · top 1.6% 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-290 (opens in a new tab)All about CWE-290 and its CVEs
Affected products
Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
- affected Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
References (2)
- 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-2018-0741 (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-2018-7842)Record last updated .