Auth bypass in Schneider-Electric Modicon M340
CVE-2019-6808
A CWE-284: Improper Access Control vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a remote code execution by overwriting configuration settings of the controller over Modbus.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.082 (94.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.082 · newest: 0.082 · 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-2019-0771 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-6808?
- CVE-2019-6808 is a critical-severity vulnerability in Schneider-Electric Modicon M340, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2019-05-22.
- How severe is CVE-2019-6808?
- Critical severity. CVSS v3 base score is 9.8 out of 10.