Auth bypass in Siemens Digsi 4
CVE-2018-4840
A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All version…
Vulnerability class: Broken Authentication
EPSS: 0.018 (75.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Siemens Digsi 4 — versions All versions < V4.92
- Siemens Digsi_4
- Siemens En100_ethernet_module_dnp3
- Siemens En100_ethernet_module_dnp3_firmware
- Siemens En100 Ethernet Module Dnp3 Variant — versions All versions < V1.05.00
- Siemens En100_ethernet_module_iec_104
- Siemens En100_ethernet_module_iec_104_firmware
- Siemens En100 Ethernet Module Iec 104 Variant — versions All versions
- Siemens En100_ethernet_module_iec_61850
- Siemens En100_ethernet_module_iec_61850_firmware
Weakness classification (CWE)
References
- productcert@siemens.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- nvd@nist.gov (Third Party Advisory, US Government Resource)
Frequently asked questions
- What is CVE-2018-4840?
- CVE-2018-4840 is a high-severity vulnerability in Siemens Digsi 4, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2018-03-08.
- How severe is CVE-2018-4840?
- High severity. CVSS v3 base score is 7.5 out of 10.