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Vulnerability record · CVE-2017-12069 · published 30 August 2017

CVE-2017-12069: Siemens simatic pcs7 xml external entity (xxe) vulnerability

Siemens · Simatic Pcs7

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker.

8.2 CVSS 3.0 High EPSS 2.9% · top 13.6% CWE-611 · XML external entity (XXE)
8.2CVSS 3.0 base score, v2 6.4
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/100559 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039510
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf PatchVendor Advisory
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf Vendor Advisory
http://www.securityfocus.com/bid/100559 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039510
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf PatchVendor Advisory
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-8551Siemens simatic pcs 7 code injection vulnerabilityThe WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through S…EPSS 5.3%10.0CVE-2011-4509Siemens wincc flexible permissions and access controls vulnerabilityThe HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panel…EPSS 2.0%10.0CVE-2011-4513Siemens wincc flexible vulnerabilitySiemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; …EPSS 4.8%10.0CVE-2011-4514Siemens wincc flexible improper authentication vulnerabilityThe TELNET daemon in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels…EPSS 3.4%9.3CVE-2011-4508Siemens wincc flexible improper authentication vulnerabilityThe HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, C…EPSS 3.0%9.3CVE-2011-4875Siemens wincc flexible memory buffer overflow vulnerabilityStack-based buffer overflow in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP…EPSS 14%9.3CVE-2011-4876Siemens wincc flexible path traversal vulnerabilityDirectory traversal vulnerability in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); …EPSS 9.0%8.5CVE-2011-4879Siemens wincc flexible improper input validation vulnerabilityminiweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; th…EPSS 12%

Source: NIST National Vulnerability Database (record CVE-2017-12069), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.