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Vulnerability record · CVE-2018-13799 · published 12 September 2018

CVE-2018-13799: Siemens simatic wincc open architecture improper privilege management vulnerability

Siemens · Simatic Wincc Open Architecture

A vulnerability has been identified in SIMATIC WinCC OA V3.14 and prior (All versions < V3.14-P021). Improper access control to a data point of the affected product could allow an unauthenticated remote user to escalate its privileges in the context of SIMATIC WinCC OA V3.14. This vulnerability could be exploited by an attacker with network access to port 5678/TCP of the SIMATIC WinCC OA V3.14 server. Successful exploitation requires no user privileges and no user interaction. This vulnerability could allow an attacker to compromise integrity and availability of the SIMATIC WinCC OA system. At the time of advisory publication no public exploitation of this vulnerability was known.

9.1 CVSS 3.0 Critical EPSS 2.3% · top 17.8% CWE-269 · Improper privilege management
9.1CVSS 3.0 base score, v2 6.4
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in SIMATIC WinCC OA V3.14 and prior (All versions < V3.14-P021). Improper access control to a data point of the affected product could allow an unauthenticated remote user to escalate its privileges in the context of SIMATIC WinCC OA V3.14. This vulnerability could be exploited by an attacker with network access to port 5678/TCP of the SIMATIC WinCC OA V3.14 server. Successful exploitation requires no user privileges and no user interaction. This vulnerability could allow an attacker to compromise integrity and availability of the SIMATIC WinCC OA system. At the time of advisory publication no public exploitation of this vulnerability was known.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/105332 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-346256.pdf Vendor Advisory
http://www.securityfocus.com/bid/105332 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-346256.pdf Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2018-13799), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.