CVE-2014-4686

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-07-24 · updated 2026-06-17

Description

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.

Affected products

Siemens Simatic Pcs7: through 8.0; 7.1-sp3, 8.0
Siemens SIMATIC WinCC: through 7.2; 5.0, 5.0-sp1, 6.0, 6.0-sp2, 6.0-sp3, 6.0-sp4 (+6)

References

http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-214365.pdf
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-214365.pdf

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