What’s Vulnerable › Vulnerabilities

CVE-2018-7809

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-11-30 · updated 2026-06-17
• Weakness: CWE-640

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.

Affected products

• Schneider-Electric Modicom Bmxnor0200H Firmware: all versions
• Schneider-Electric Modicom M340 Firmware: all versions
• Schneider-Electric Modicom Premium Firmware: all versions
• Schneider-Electric Modicom Quantum Firmware: all versions

References

• https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/
• https://www.tenable.com/security/research/tra-2018-38
• https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/
• https://www.tenable.com/security/research/tra-2018-38

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