Vulnerability in Schneider-Electric Modicon M340
CVE-2018-7857
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 out of bounds variables to the controller over Modbus.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Schneider-Electric Modicon M340
- Schneider-Electric Modicon M340 Firmware
- Schneider-Electric Modicon M580
- Schneider-Electric Modicon M580 Firmware
- Schneider-Electric Modicon Premium
- Schneider-Electric Modicon Premium Firmware
- Schneider-Electric Modicon Quantum
- Schneider-Electric Modicon Quantum Firmware
- Modicon M580 M340 Quantum Premium — versions Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
Weakness classification (CWE)
References
- www.schneider-electric.com/en/download/document/SEVD-2019-134-11/ (Mitigation, Vendor Advisory)
- www.talosintelligence.com/vulnerability_reports/TALOS-2019-0768 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-7857?
- CVE-2018-7857 is a high-severity vulnerability in Schneider-Electric Modicon M340, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2019-05-22.
- How severe is CVE-2018-7857?
- High severity. CVSS v3 base score is 7.5 out of 10.