Critical severity9.8NVD Advisory· Published Dec 11, 2020· Updated Jun 17, 2026
CVE-2020-7540
CVE-2020-7540
Description
A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause unauthenticated command execution in the controller when sending special HTTP requests.
Affected products
26- cpe:2.3:o:schneider-electric:140cpu65150_firmware:*:*:*:*:*:*:*:*Range: <6.1
- cpe:2.3:o:schneider-electric:140cpu65160_firmware:*:*:*:*:*:*:*:*Range: <6.1
- cpe:2.3:o:schneider-electric:140noc77101_firmware:*:*:*:*:*:*:*:*Range: <1.08
- cpe:2.3:o:schneider-electric:140noc78000_firmware:*:*:*:*:*:*:*:*Range: <1.74
- cpe:2.3:o:schneider-electric:140noc78100_firmware:*:*:*:*:*:*:*:*Range: <1.74
- cpe:2.3:o:schneider-electric:140noe77101_firmware:*:*:*:*:*:*:*:*Range: <7.1
- cpe:2.3:o:schneider-electric:140noe77111_firmware:*:*:*:*:*:*:*:*Range: <7.1
- cpe:2.3:o:schneider-electric:bmxnoc0401_firmware:*:*:*:*:*:*:*:*Range: <2.10
- cpe:2.3:o:schneider-electric:bmxnoe0100_firmware:*:*:*:*:*:*:*:*Range: <3.3
- cpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*Range: <6.5
- cpe:2.3:o:schneider-electric:bmxnor200h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:*:*:*:*:*:*:*:*Range: <3.30
cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:*:*:*:*:*:*:*:*range: <3.30
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:*:*:*:*:*:*:*:*range: <3.30
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:*:*:*:*:*:*:*:*Range: <3.30
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102cl_firmware:*:*:*:*:*:*:*:*Range: <3.30
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:*:*:*:*:*:*:*:*Range: <3.30
- cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302cl_firmware:*:*:*:*:*:*:*:*Range: <3.30
- cpe:2.3:o:schneider-electric:tsxety4103_firmware:*:*:*:*:*:*:*:*Range: <6.2
- cpe:2.3:o:schneider-electric:tsxety5103_firmware:*:*:*:*:*:*:*:*Range: <6.4
cpe:2.3:o:schneider-electric:tsxp574634_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:schneider-electric:tsxp574634_firmware:*:*:*:*:*:*:*:*range: <6.1
- cpe:2.3:o:schneider-electric:tsxp575634_firmware:*:*:*:*:*:*:*:*range: <6.1
- cpe:2.3:o:schneider-electric:tsxp576634_firmware:*:*:*:*:*:*:*:*Range: <6.1
Patches
Vulnerability mechanics
References
1- www.se.com/ww/en/download/document/SEVD-2020-343-04/nvdVendor Advisory
News mentions
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