Back
CVE-2018-7809
An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200…
Critical9.8EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- schneider
Description
An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the password delete function of the web server.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Unverified Password Change
- CWE-640 (opens in a new tab)Other CVEs with CWE-640
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://www.tenable.com/security/research/tra-2018-38 (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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-7809)Record last updated .