Vulnerability record · CVE-2017-6034 · published 30 June 2017
CVE-2017-6034: Schneider-electric modbus firmware authentication bypass by capture-replay vulnerability
Schneider Electric · Modbus Firmware
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.
Description
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/97562 | Third Party AdvisoryVDB Entry |
| https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2017/icsa-17-101-01.json | |
| https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01 | Third Party AdvisoryUS Government Resource |
| https://www.se.com/us/en/download/document/SEVD-2017-065-01/ | |
| http://www.securityfocus.com/bid/97562 | Third Party AdvisoryVDB Entry |
| https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01 | Third Party AdvisoryUS Government Resource |
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2017-6034), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.