CVE-2017-6017
highpriority · track · 32EPSS 0.048 · 92 %ileEUUSEPSS · scored 2026-10-27
A Resource Exhaustion issue was discovered in Schneider Electric Modicon M340 PLC BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H, BMXNOR0200H, BMXP341000, BMXP342000, BMXP3420102, BMXP3420102CL, BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, and BMXP342030H. A remote attacker could send a specially crafted set of packets to the PLC causing it to freeze, requiring the operator to physically press the reset button on the PLC in order to recover.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationM1E CPUscisa_csaf_ot
Set up a firewall blocking all remote/external access to Port 502
- MitigationM340 CPUs with firmwarecisa_csaf_ot
Set up a firewall blocking all remote/external access to Port 502
- MitigationM580 CPUs with firmwarecisa_csaf_ot
Set up a firewall blocking all remote/external access to Port 502
- MitigationPremium CPUscisa_csaf_ot
Set up a firewall blocking all remote/external access to Port 502
- MitigationQuantum CPUs with firmwarecisa_csaf_ot
Set up a firewall blocking all remote/external access to Port 502
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (26)
Products and version ranges known to be affected.
- schneider-electric bmxnoc0401 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:bmxnoc0401_firmware:*:*:*:*:*:*:*:*
- schneider-electric bmxnoe0100 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:bmxnoe0100_firmware:*:*:*:*:*:*:*:*
- schneider-electric bmxnoe0110 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*
- schneider-electric bmxnoe0110h firmware= 2.8nvdUScpe:2.3:o:schneider-electric:bmxnoe0110h_firmware:*:*:*:*:*:*:*:*
- schneider-electric bmxnor0200h firmware= 2.8nvdUScpe:2.3:o:schneider-electric:bmxnor0200h_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m340 bmxp341000 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m340 bmxp342000 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m340 bmxp3420102 firmware= 2.8nvdUScpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m340 bmxp3420102cl firmware= 2.8nvdUScpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102cl_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-17-054-03Schneider Electric Modicon M340 PLC (Update A)2017-02-23icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability may render the device unresponsive requiring a physical reset of the PLC.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- http://www.schneider-electric.com/en/download/document/BMXP342000_V29/Patchcnnvd
- http://www.securityfocus.com/bid/96414cnnvd
- https://ics-cert.us-cert.gov/advisories/ICSA-17-054-03cnnvd
- http://www.securityfocus.com/bid/96414enisa_euvd
- https://ics-cert.us-cert.gov/advisories/ICSA-17-054-03enisa_euvd
- https://www.schneider-electric.com/en/download/document/SEVD-2017-048-02/enisa_euvd
- http://www.securityfocus.com/bid/96414Third Party AdvisoryVDB Entrynvd
- https://ics-cert.us-cert.gov/advisories/ICSA-17-054-03MitigationThird Party AdvisoryUS Government Resourcenvd
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