Auth bypass in Schneider-electric Modicon_m221
CVE-2018-7791
A Permissions, Privileges, and Access Control vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to overwrite the origina…
Vulnerability class: Broken Authentication
EPSS: 0.004 (58.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Schneider-electric Modicon_m221
- Schneider-electric Modicon_m221_firmware
- Schneider Electric Se Modicon M221, All References, Versions Prior To Firmware V1.6.2.0 — versions Modicon M221, all references, all versions prior to firmware V1.6.2.0
Weakness classification (CWE)
References
- cybersecurity@se.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cybersecurity@se.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-7791?
- CVE-2018-7791 is a critical-severity vulnerability in Schneider-electric Modicon_m221, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-08-29.
- How severe is CVE-2018-7791?
- Critical severity. CVSS v3 base score is 9.8 out of 10.