Vulnerability in Schneider-electric Modicon_m340
CVE-2018-7856
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…
EPSS: 0.016 (72.5th percentile) — read the EPSS interpretation.
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.
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
- N/a Modicon M580 M340 Quantum Premium — versions Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cybersecurity@se.com (x_refsource_MISC, Mitigation, Vendor Advisory)
- cybersecurity@se.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-7856?
- CVE-2018-7856 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-2018-7856?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-7856 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.