CVE-2020-7537
High
Description
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.
SeverityHigh
CVSS7.5
Exploit probability73. percentile1.4%
ProductSchneider-electric Modicon M580 Bmep584040 Firmware
PublishedDec 11, 2020
First seenDec 11, 2020
Weakness typeCWE-754CWE-754
How to fix
Update
- schneider-electric modicon_m580_bmep584040_firmware3.20 or later
- schneider-electric modicon_m580_bmep582040_firmware3.20 or later
- schneider-electric modicon_m580_bmep586040_firmware3.20 or later
- schneider-electric modicon_m580_bmep585040_firmware3.20 or later
- schneider-electric modicon_m580_bmep582020_firmware3.20 or later
- schneider-electric modicon_m580_bmep581020_firmware3.20 or later
- schneider-electric modicon_m580_bmep584020_firmware3.20 or later
- schneider-electric modicon_m580_bmep583040_firmware3.20 or later
- schneider-electric modicon_m580_bmep583020_firmware3.20 or later
- schneider-electric modicon_m340_bmxp341000_firmware3.30 or later
- schneider-electric modicon_m340_bmxp342000_firmware3.30 or later
- schneider-electric modicon_m340_bmxp3420102_firmware3.30 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| schneider-electric modicon_m580_bmep584040_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep582040_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep586040_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep585040_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep582020_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep581020_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep584020_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep583040_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m580_bmep583020_firmware | v < 3.20 | 3.20 |
| schneider-electric modicon_m340_bmxp341000_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp342000_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp3420102_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp3420102cl_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp342020_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp3420302_firmware | v < 3.30 | 3.30 |
| schneider-electric modicon_m340_bmxp3420302cl_firmware | v < 3.30 | 3.30 |
| schneider-electric tsxp574634_firmware | No range specified | — |
| schneider-electric tsxp575634_firmware | No range specified | — |
| schneider-electric tsxp576634_firmware | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.