CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2020-7564
A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
- CWE
- CWE-120
- Published
- Modified
- Record from
- the NVD, synced
Affected
- schneider-electric:modicon_m340_bmx_noc_0401_firmware
- schneider-electric:modicon_m340_bmx_noe_0100_firmware
- schneider-electric:modicon_m340_bmx_noe_0100h_firmware
- schneider-electric:modicon_m340_bmx_noe_0110_firmware
- schneider-electric:modicon_m340_bmx_noe_0110h_firmware
- schneider-electric:modicon_m340_bmx_nor_0200h_firmware
- schneider-electric:modicon_m340_bmx_p34-2010_firmware
- schneider-electric:modicon_m340_bmx_p34-2030_firmware
- schneider-electric:modicon_quantum_140cpu65150_firmware
- schneider-electric:modicon_quantum_140cpu65150c_firmware
- schneider-electric:modicon_quantum_140cpu65160_firmware
- schneider-electric:modicon_quantum_140cpu65160c_firmware
- schneider-electric:modicon_quantum_140noc78100_firmware
- schneider-electric:modicon_quantum_140noe77101_firmware
- schneider-electric:modicon_quantum_140noe77111_firmware
- schneider-electric:modicon_tsxety4103_firmware
- schneider-electric:modicon_tsxety5103_firmware
- schneider-electric:modicon_tsxp574634_firmware
- schneider-electric:modicon_tsxp575634_firmware
- schneider-electric:modicon_tsxp576634_firmware