CVE-2018-7760

9.8 CRITICAL 1% exploit odds Fix listed Auth & access Device

What it is

An authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. Requests to CGI functions allow malicious users to bypass authorization.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2018-04-18 20:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:03 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.5% in the next 30 days (EPSS).
Severity: 9.8 CRITICAL (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2018-04-18 20:29 UTC
Last modified: 2026-06-17 02:03 UTC
Exploit probability: 1.5% · EPSS, next 30 days
Weakness: CWE-287 · Improper authentication
Record status: Modified

Affected

schneider-electric bmxnor0200 Firmware
schneider-electric bmxnor0200h Firmware
schneider-electric 140cpu65150 Firmware
schneider-electric 140cpu31110 Firmware
schneider-electric 140cpu43412u Firmware
schneider-electric 140cpu65160 Firmware
schneider-electric 140cpu65260 Firmware
schneider-electric 140cpu65860 Firmware

Attack profile CVSS 3.0 · 9.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record