CVE-2018-7838: Schneider Electric BMEH582040 Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions before V2.90, and Modicon Ethernet Module BMENOC0301, all versions before V2.16, which could cause denial of service on the FTP service of the controller or the Ethernet BMENOC module when it receives a FTP CWD command with a data length greater than 1020 bytes. A power cycle is then needed to reactivate the FTP service.

Affected products

• Schneider Electric BMEH582040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric BMEH586040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric BMENOC0301 Firmware: before 2.16 (fixed in 2.16)
• Schneider Electric Modicon m580 BMEP581020 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP582020 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP582040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP582040S Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP583020 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP583040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP584020 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP584040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP585040 Firmware: before 2.90 (fixed in 2.90)
• Schneider Electric Modicon m580 BMEP586040 Firmware: before 2.90 (fixed in 2.90)

Published 2019-07-15. Last modified 2026-06-17.