Critical severity9.8NVD Advisory· Published Jun 30, 2017· Updated Jun 17, 2026
CVE-2017-6028
CVE-2017-6028
Description
An Insufficiently Protected Credentials issue was discovered in Schneider Electric Modicon PLCs Modicon M241, all firmware versions, and Modicon M251, all firmware versions. Log-in credentials are sent over the network with Base64 encoding leaving them susceptible to sniffing. Sniffed credentials could then be used to log into the web application.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:*range: <=4.0.3.20
- (no CPE)range: all firmware versions
cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:*range: <=4.0.3.20
- (no CPE)range: all firmware versions
Patches
Vulnerability mechanics
References
2- www.securityfocus.com/bid/97254nvdThird Party AdvisoryVDB Entry
- ics-cert.us-cert.gov/advisories/ICSA-17-089-02nvdThird Party AdvisoryUS Government Resource
News mentions
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