Vulnerability in Siemens Simatic Logon

CVE-2017-2684

Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (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 trend (30 days)EPSS over the last 30 days for CVE-2017-2684: held from 0.020 to 0.020.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

  • Siemens Simatic Logon
  • Simatic Logon All Versions < V1.5 Sp3 Update 2 — versions SIMATIC Logon All versions < V1.5 SP3 Update 2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-2684?
CVE-2017-2684 is a critical-severity vulnerability in Siemens Simatic Logon, classified under CWE-592. CVSS score: 9.0/10. Published 2017-02-22.
How severe is CVE-2017-2684?
Critical severity. CVSS v3 base score is 9.0 out of 10.