How severe is CVE-2013-4912?

CVE-2013-4912 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2013-4912 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4912?

CVE-2013-4912 primarily affects Siemens Wincc. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4912?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4912 published?

CVE-2013-4912 was published on 2013-08-01 and last updated on 2026-06-16.

CVE-2013-4912

CVE-2013-4912 is a medium-severity vulnerability in Siemens Wincc with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Siemens Wincc
Published: 2013-08-01
Last modified: 2026-06-16

Description

Open redirect vulnerability in Siemens WinCC (TIA Portal) 11 and 12 before 12 SP1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.

Frequently asked questions

What is CVE-2013-4912?: Open redirect vulnerability in Siemens WinCC (TIA Portal) 11 and 12 before 12 SP1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.
How severe is CVE-2013-4912?: CVE-2013-4912 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2013-4912 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4912?: CVE-2013-4912 primarily affects Siemens Wincc. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4912?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4912 published?: CVE-2013-4912 was published on 2013-08-01 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:siemens:wincc:11.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:wincc:11.0:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:wincc:11.0:sp2:*:*:*:*:*:*
cpe:2.3:a:siemens:wincc:12.0:*:*:*:*:*:*:*

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