Unrated severityNVD Advisory· Published Dec 7, 2013· Updated Jun 17, 2026
CVE-2013-6920
CVE-2013-6920
Description
Siemens SINAMICS S/G controllers with firmware before 4.6.11 do not require authentication for FTP and TELNET sessions, which allows remote attackers to bypass intended access restrictions via TCP traffic to port (1) 21 or (2) 23.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15cpe:2.3:h:siemens:sinamics_g110:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:h:siemens:sinamics_g110:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_s110:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g110d:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g120c:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:h:siemens:sinamics_g120c:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120p:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120d:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g130:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g150:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g180:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s120:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:h:siemens:sinamics_s120:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_s120cm:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s150:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:h:siemens:sinamics_s150:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:sinamics_s\/g_family_firmware:*:*:*:*:*:*:*:*range: <=4.6
- Range: <4.6.11
Patches
Vulnerability mechanics
References
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