CVE-2020-7539
High
Description
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause a denial of service vulnerability when a specially crafted packet is sent to the controller over HTTP.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSchneider-electric Modicon M340 Bmxp341000 Firmware
PublishedDec 11, 2020
First seenDec 11, 2020
Weakness typeCWE-754CWE-754
How to fix
Update
- 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
- schneider-electric modicon_m340_bmxp3420102cl_firmware3.30 or later
- schneider-electric modicon_m340_bmxp342020_firmware3.30 or later
- schneider-electric modicon_m340_bmxp3420302_firmware3.30 or later
- schneider-electric modicon_m340_bmxp3420302cl_firmware3.30 or later
- schneider-electric bmxnoe0100_firmware3.3 or later
- schneider-electric bmxnoe0110_firmware6.5 or later
- schneider-electric bmxnoc0401_firmware2.10 or later
- schneider-electric tsxp574634_firmware6.1 or later
- schneider-electric tsxp575634_firmware6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 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 bmxnoe0100_firmware | v < 3.3 | 3.3 |
| schneider-electric bmxnoe0110_firmware | v < 6.5 | 6.5 |
| schneider-electric bmxnoc0401_firmware | v < 2.10 | 2.10 |
| schneider-electric tsxp574634_firmware | v < 6.1 | 6.1 |
| schneider-electric tsxp575634_firmware | v < 6.1 | 6.1 |
| schneider-electric tsxp576634_firmware | v < 6.1 | 6.1 |
| schneider-electric tsxety4103_firmware | v < 6.2 | 6.2 |
| schneider-electric tsxety5103_firmware | v < 6.4 | 6.4 |
| schneider-electric 140cpu65150_firmware | v < 6.1 | 6.1 |
| schneider-electric 140noe77111_firmware | v < 7.1 | 7.1 |
| schneider-electric 140noc78100_firmware | v < 1.74 | 1.74 |
| schneider-electric 140noc78000_firmware | v < 1.74 | 1.74 |
| schneider-electric 140noc77101_firmware | v < 1.08 | 1.08 |
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