Is CVE-2013-3958 being actively exploited?

CVE-2013-3958 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-3958?

CVE-2013-3958 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2013-3958

HIGH · CVSS 7.5EPSS 1.9%EU EUVD

The login implementation in the Web Navigator in Siemens WinCC before 7.2 Update 1, as used in SIMATIC PCS7 8.0 SP1 and earlier and other products, has a hardcoded account, which makes it easier for remote attackers to obtain access via an unspecified request.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-255
EPSS score: 1.9% (80th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-3890)
Published: June 14, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-3890 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

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

References

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345843.pdf(Vendor Advisory)

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

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