CVE-2023-28829

Name: CVE-2023-28829
Creator: NVD / NIST
Published: 2023-06-13T09:15:16.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2023-28829 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability has been identified in SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions), SIMATIC WinCC (All versions < V8.0), SINAUT Software ST7sc (All versions). Before SIMATIC WinCC V8, legacy OPC services (OPC DA (Data Access), OPC HDA (Historical Data Access), and OPC AE (Alarms & Events)) were used per default. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions), SIMATIC WinCC (All versions < V8.0), SINAUT Software ST7sc (All versions). Before SIMATIC WinCC V8, legacy OPC services (OPC DA (Data Access), OPC HDA (Historical Data Access), and OPC AE (Alarms & Events)) were used per default. These services were designed on top of the Windows ActiveX and DCOM mechanisms and do not implement state-of-the-art security mechanisms for authentication and encryption of contents.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.29%

20.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-477

Affected Software

Vendor	Product	Versions
Siemens	Simatic Net Pc Software	14.0
Siemens	Simatic Net Pc Software	15.0
Siemens	Simatic Pcs 7	8.2
Siemens	Simatic Pcs 7	9.0
Siemens	Simatic Pcs 7	9.1
Siemens	Simatic Wincc	< 8.0
Siemens	Sinaut St7sc	All versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-508677.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-508677.pdfPatch, Vendor Advisory

Timeline

Published: Jun 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28829?

How severe is CVE-2023-28829?

CVE-2023-28829 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28829?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28829?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST