Unrated severityNVD Advisory· Published Dec 7, 2013· Updated Apr 29, 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.
Affected products
14- cpe:2.3:o:siemens:sinamics_s\/g_family_firmware:*:*:*:*:*:*:*:*Range: <=4.6
- cpe:2.3:h:siemens:sinamics_g110:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g110d:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120c:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120d:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_g120p:-:*:*:*:*:*:*:*
- 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_s110:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_s120:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_s120cm:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:sinamics_s150:-:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3News mentions
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