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Vulnerability record · CVE-2018-7761 · published 18 April 2018

CVE-2018-7761: Schneider-electric bmxnor0200 firmware improper input validation vulnerability

Schneider Electric · Bmxnor0200 Firmware

A vulnerability exists in the HTTP request parser in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200 which could allow arbitrary code execution.

9.8 CVSS 3.0 Critical EPSS 2.1% · top 18.7% CWE-20 · Improper input validation
9.8CVSS 3.0 base score, v2 7.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
57Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability exists in the HTTP request parser in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200 which could allow arbitrary code execution.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

57 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.schneider-electric.com/en/download/document/SEVD-2018-081-02/ Vendor Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2018-081-02/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-7540Schneider-electric modicon m340 bmxp341000 firmware missing authentication for critical function vulnerabilityA CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Mod…EPSS 2.3%9.8CVE-2018-7241Schneider-electric bmxnor0200 firmware hard-coded credentials vulnerabilityHard coded accounts exist in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the c…EPSS 3.8%9.8CVE-2018-7242Schneider-electric bmxnor0200 firmware inadequate encryption strength vulnerabilityVulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions …EPSS 1.9%9.8CVE-2018-7760Schneider-electric bmxnor0200 firmware improper authentication vulnerabilityAn authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. Requests to CGI …EPSS 1.5%8.8CVE-2018-7240Schneider-electric 140cpu65150 firmware out-of-bounds write vulnerabilityA vulnerability exists in Schneider Electric's Modicon Quantum in all versions of the communication modules which could allow arbitrary code executio…EPSS 3.3%7.5CVE-2021-22787Schneider-electric modicon m340 bmxp342020 firmware improper input validation vulnerabilityA CWE-20: Improper Input Validation vulnerability exists that could cause denial of service of the device when an attacker sends a specially crafted …EPSS 1.0%7.5CVE-2021-22788Schneider-electric modicon m340 bmxp342020 firmware out-of-bounds write vulnerabilityA CWE-787: Out-of-bounds Write vulnerability exists that could cause denial of service when an attacker sends a specially crafted HTTP request to the…EPSS 1.0%7.5CVE-2021-22785Schneider-electric modicon m340 bmxp342020 firmware information exposure vulnerabilityA CWE-200: Information Exposure vulnerability exists that could cause sensitive information of files located in the web root directory to leak when a…EPSS 0.96%

Source: NIST National Vulnerability Database (record CVE-2018-7761), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.