Is CVE-2014-4686 being actively exploited?

CVE-2014-4686 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-4686?

CVE-2014-4686 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2014-4686

MEDIUM · CVSS 6.8EPSS 1.1%EU EUVD

The Project administration application in Siemens SIMATIC WinCC before 7.3, as used in PCS7 and other products, has a hardcoded encryption key, which allows remote attackers to obtain sensitive information by extracting this key from another product installation and then employing this key during the sniffing of network traffic on TCP port 1030.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS score: 1.1% (65th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-4605)
Published: July 24, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-4605 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

siemens / simatic pcs7
siemens / simatic pcs7
siemens / simatic pcs7
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc
siemens / wincc

References

http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-214365.pdf(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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