CVE-2017-6034

CVE-2017-6034: Schneider Electric Modicon Modbus Protocol Authentication Bypass by Capture-replay

Vendor Schneider Electric

Product Modicon Modbus Protocol

Weakness CWE-294

Published June 30, 2017

Last update June 4, 2026

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol. Sensitive information is transmitted in cleartext in the Modicon Modbus protocol, which may allow an attacker to replay the following commands: run, stop, upload, and download.

Key dates

02Disclosure timeline

June 30, 2017 CVE published

June 4, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2017-6034 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/294.html

Related vulnerabilities

CVE-2017-6034: Schneider Electric Modicon Modbus Protocol Authentication Bypass by Capture-replay

01Description

02Disclosure timeline

03References

04Related CVE