CVE-2017-6026

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization and are shared between several users. This may allow a current session to be compromised.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-330

Affected software

VendorProductVersions
n/aSchneider Electric Modicon PLCsSchneider Electric Modicon PLCs

References

Timeline

Published
Jun 30, 2017
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-6026: Critical severity, CVSS 9.1 | Vulnix