CVE-2018-7838
A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-7838- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-7838- Weakness
- CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2018-19550 No score
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.
- Record
EUVD-2018-19550- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9v86-72g4-pvjh
A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions...
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.
- Record
GHSA-9v86-72g4-pvjh- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
- modicon m580 cpu - bmep582040 all versions before v2.90 and modicon ethernet module bmenoc0301 all versions before v2.16
- schneider-electric bmeh582040 firmware
- schneider-electric bmeh586040 firmware
- schneider-electric bmenoc0301 firmware
- schneider-electric modicon m580 bmep581020 firmware
- schneider-electric modicon m580 bmep582020 firmware
- schneider-electric modicon m580 bmep582040 firmware
- schneider-electric modicon m580 bmep582040s firmware
- schneider-electric modicon m580 bmep583020 firmware
- schneider-electric modicon m580 bmep583040 firmware
- schneider-electric modicon m580 bmep584020 firmware
- schneider-electric modicon m580 bmep584040 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-7838 is a high vulnerability (CVSS 7.5) in Modicon M580 Cpu - Bmep582040 All Versions Before V2.90 And Modicon Ethernet Module Bmenoc0301 All Versions Before V2.16, published July 15, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. No source names a fixed version.