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.
Published 2013-12-07 00:55:04
Updated 2020-02-10 15:15:13
Source MITRE
View at NVD,
Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2013-6920

Probability of exploitation activity in the next 30 days EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2013-6920

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

CWE ids for CVE-2013-6920

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: (Primary)

Products affected by CVE-2013-6920

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