CVE-2018-7856
First published: Wed May 22 2019(Updated: )
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks to the controller over Modbus.
Credit: cybersecurity@se.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider-electric Modicon Premium Firmware | ||
| Schneider-electric Modicon Premium | ||
| Schneider-electric Modicon Quantum Firmware | ||
| Schneider-electric Modicon Quantum | ||
| Schneider-electric Modicon M340 Firmware | <3.10 | |
| Schneider-electric Modicon M340 | ||
| Schneider-electric Modicon M580 Firmware | <2.90 | |
| Schneider-electric Modicon M580 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2018-7856.
What is the severity level of CVE-2018-7856?
The severity level of CVE-2018-7856 is high with a score of 7.5 out of 10.
Which software versions are affected by CVE-2018-7856?
All versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium are affected.
How can CVE-2018-7856 be exploited?
CVE-2018-7856 can be exploited by writing invalid memory blocks to the controller over Modbus.
Where can I find more information about CVE-2018-7856?
You can find more information about CVE-2018-7856 at the following references: [Schneider-electric Advisory](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/) and [Talos Intelligence Advisory](https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0767).
- collector/nvd-index
- agent/weakness
- agent/references
- agent/author
- agent/severity
- agent/type
- agent/description
- agent/event
- agent/last-modified-date
- agent/tags
- vendor/schneider-electric
- canonical/schneider-electric modicon premium firmware
- canonical/schneider-electric modicon premium
- canonical/schneider-electric modicon quantum firmware
- canonical/schneider-electric modicon quantum
- canonical/schneider-electric modicon m340 firmware
- canonical/schneider-electric modicon m340
- canonical/schneider-electric modicon m580 firmware
- canonical/schneider-electric modicon m580