CVE-2020-15791mediumCWE-522

CVE-2020-15791: medium-severity vulnerability in Siemens SIMATIC S7-300 CPU family (incl.

Published · Updated

Follow this CVE+ Monitor SINUMERIK 840D sl+ Monitor SIMATIC WinAC RTX

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.7%
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Siemens · SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)Siemens · SIMATIC S7-400 CPU family (incl. SIPLUS variants)Siemens · SIMATIC WinAC RTX (F) 2010Siemens · SINUMERIK 840D sl
Related CVEs — Siemens SIMATIC S7-300 CPU family (incl.

In the same product, most dangerous first.

CVE-2017-12741HIGHCVE-2017-12741EPSS 3.3%CVE-2020-15783HIGHCVE-2020-15783EPSS 1.7%CVE-2017-2680HIGHCVE-2017-2680EPSS 1.1%CVE-2017-2681HIGHCVE-2017-2681EPSS 0.9%