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Fencer Intel
medium 6.8

CVE-2014-4686 json

The Project administration application in Siemens SIMATIC WinCC before 7.3, as used in PCS7 and other products, has a hardcoded encryption…

published 2014-07-24 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-4605

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-14-205-02A updated cvss 6.8

Siemens SIMATIC WinCC Vulnerabilities (Update A)

  • Siemens SIMATIC PCS7 (as WinCC is incorporated) <8.1 Siemens SIMATIC WinCC <7.3
    affected: mitigation “Additional information about SIMATIC WinCC V7.3 is available at the following location (http://support.automation.siemens.com/WW/view/en/97493192)” mall.industry.siemens.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-15-048-02 updated cvss 6.8

Siemens SIMATIC WinCC TIA Portal Vulnerabilities

  • Siemens SIMATIC WinCC TIA Portal <V13_SP1
    affected: mitigation “Siemens provides Service Pack 1 for SIMATIC WinCC TIA Portal V13 which mitigates the vulnerabilities. http://support.automation.siemens.com/WW/view/en/106567433”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.