CVE-2020-7536
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon...
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.
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-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.
- Record
CVE-2020-7536- 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-754
- Updated
- 2026-11-02
CVE List No score
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.
- Record
CVE-2020-7536- Weakness
- CWE-754
- Updated
- 2026-11-02
EUVDEUVD-2020-28661 No score
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.
- Record
EUVD-2020-28661- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7f68-748r-v7xr No score
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon...
A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.
- Record
GHSA-7f68-748r-v7xr- Weakness
- CWE-754
- Updated
- 2026-11-02
Affected products
- schneider-electric bmxnoe0100 firmware
- schneider-electric bmxnoe0110 firmware
- schneider-electric bmxnor0200h firmware
- schneider-electric modicon m340 bmxp341000 firmware
- schneider-electric modicon m340 bmxp342000 firmware
- schneider-electric modicon m340 bmxp3420102 firmware
- schneider-electric modicon m340 bmxp3420102cl firmware
- schneider-electric modicon m340 bmxp342020 firmware
- schneider-electric modicon m340 bmxp3420302 firmware
- schneider-electric modicon m340 bmxp3420302cl firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7536 is a high vulnerability (CVSS 7.5) in Schneider-electric Bmxnoe0100 Firmware, published December 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. No source names a fixed version.