CVE-2013-3958

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.

Published: 2013-06-14 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-3958 is rated Moderate Risk (58.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.93%). EPSS rose +1.51% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-3958

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.42% 1.93% +1.51%
2 2025-04-27 0.57% 0.42% -0.15%
3 2025-03-30 — 0.57% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-3958

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2013-3958

Affected software / configurations for CVE-2013-3958

Vendor Product Version Raw CPE
siemens simatic_pcs7 <= 8.0 cpe:2.3:a:siemens:simatic_pcs7:*:sp1:*:*:*:*:*:*
siemens simatic_pcs7 8.0 cpe:2.3:a:siemens:simatic_pcs7:8.0:*:*:*:*:*:*:*
siemens wincc <= 7.2 cpe:2.3:a:siemens:wincc:*:*:*:*:*:*:*:*
siemens wincc 7.0 cpe:2.3:a:siemens:wincc:7.0:*:*:*:*:*:*:*
siemens wincc 7.0 cpe:2.3:a:siemens:wincc:7.0:sp1:*:*:*:*:*:*
siemens wincc 7.0 cpe:2.3:a:siemens:wincc:7.0:sp2:*:*:*:*:*:*
siemens wincc 7.0 cpe:2.3:a:siemens:wincc:7.0:sp3:*:*:*:*:*:*
siemens wincc 7.1 cpe:2.3:a:siemens:wincc:7.1:*:*:*:*:*:*:*
siemens wincc 7.1 cpe:2.3:a:siemens:wincc:7.1:sp1:*:*:*:*:*:*

References for CVE-2013-3958

cvelogic Threat Intelligence