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CVE-2018-7830
Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability exists in the embedded web servers in…
High7.5EPSS 2.4%
- Published
- Updated
- Reserved
- Assigned by
- schneider
Description
Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where a denial of service can occur for ~1 minute by sending a specially crafted HTTP request.
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:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% 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
- Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')
- CWE-113 (opens in a new tab)All about CWE-113 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://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-2018-7830)Record last updated .