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Fencer Intel
medium 6.6

CVE-2013-4651 json

Siemens Scalance W7xx devices with firmware before 4.5.4 use the same hardcoded X.509 certificate across different customers' installations…

published 13y ago modified 4mo ago also EUVD-2013-4506

cvss
6.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Siemens Scalance W7xx devices with firmware before 4.5.4 use the same hardcoded X.509 certificate across different customers' installations, which makes it easier for remote attackers to conduct man-in-the-middle attacks against SSL sessions by leveraging the certificate's trust relationship.

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Vendor advisories

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

cisa ICSA-13-213-01 updated cvss 6.6

Siemens Scalance W-7xx Product Family Multiple Vulnerabilities

  • Siemens SCALANCE W744-1, W746-1, W747-1, W744-1PRO
    affected: mitigation “Siemens security advisory is located here: (http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-120908.pdf)”

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

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.6 AV:N/AC:H/Au:N/C:P/I:P/A:C

Classification

Weakness
  • CWE-255 Credentials Management Errors

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.