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.
EPSS: 0.019 (77.9th percentile) — read the EPSS interpretation.
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.
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 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
- cybersecurity@se.com (US Government Resource, Third Party Advisory, x_refsource_MISC)
- cybersecurity@se.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cybersecurity@se.com (Patch, x_refsource_MISC, 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.