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CVE-2018-7812
An Information Exposure through Discrepancy vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs…
High7.5EPSS 3.7%
- Published
- Updated
- Reserved
- Assigned by
- schneider
Description
An Information Exposure through Discrepancy vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where the web server sends different responses in a way that exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.7% · top 10% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Information Exposure Through Discrepancy
- CWE-200 (opens in a new tab)All about CWE-200 and its CVEs
Affected products
Schneider Electric SE · Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200
- affected Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200
References (2)
- https://github.com/SadFud/Exploits/tree/master/Real%20World/SCADA%20-%20IOT%20Systems/CVE-2018-7812 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/ (opens in a new tab)x_refsource_CONFIRMx_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)
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[](https://trackcve.app/cve/CVE-2018-7812)Record last updated .