How severe is CVE-2013-4911?

CVE-2013-4911 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2013-4911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4911?

CVE-2013-4911 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-2013-4911?

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

When was CVE-2013-4911 published?

CVE-2013-4911 was published on 2013-08-01 and last updated on 2026-06-16.

CVE-2013-4911

CVE-2013-4911 is a medium-severity vulnerability in Siemens Wincc with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Siemens Wincc
Published: 2013-08-01
Last modified: 2026-06-16

Description

Cross-site request forgery (CSRF) vulnerability in Siemens WinCC (TIA Portal) 11 and 12 before 12 SP1 allows remote attackers to hijack the authentication of unspecified victims by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.

Frequently asked questions

What is CVE-2013-4911?: Cross-site request forgery (CSRF) vulnerability in Siemens WinCC (TIA Portal) 11 and 12 before 12 SP1 allows remote attackers to hijack the authentication of unspecified victims by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.
How severe is CVE-2013-4911?: CVE-2013-4911 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2013-4911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4911?: CVE-2013-4911 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-2013-4911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4911 published?: CVE-2013-4911 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:*:*:*:*:*:*:*

More vulnerabilities in Siemens Wincc

CVE-2011-4514 — Critical (CVSS 10.0): The TELNET daemon in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP,…
CVE-2011-4513 — Critical (CVSS 10.0): Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and…
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CVE-2011-4876 — Critical (CVSS 9.3): Directory traversal vulnerability in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and…
CVE-2011-4875 — Critical (CVSS 9.3): Stack-based buffer overflow in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008;…
CVE-2011-4508 — Critical (CVSS 9.3): The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before…

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