Vulnerability in Schneider-Electric Modicon M340
CVE-2019-6821
CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · 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 Controllers, M580 Firmware Versions Prior To V2.30, And All Of M340, Premium, Quantum — versions Modicon Controllers, Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum
Weakness classification (CWE)
References
- ics-cert.us-cert.gov/advisories/ICSA-19-136-01 (US Government Resource, Third Party Advisory)
- www.securityfocus.com/bid/108366 (VDB Entry, Third Party Advisory, vdb-entry)
- www.schneider-electric.com/en/download/document/SEVD-2019-134-03/ (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-6821?
- CVE-2019-6821 is a medium-severity vulnerability in Schneider-Electric Modicon M340, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2019-05-22.
- How severe is CVE-2019-6821?
- Medium severity. CVSS v3 base score is 6.5 out of 10.