Dashboard / CVE-2023-28829

CVE-2023-28829

HIGH
MEDIUM Priority: 0.03 BB Relevance: 68/100
Published: 2023-06-13 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
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 *

References & Advisories (1)

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.29%
Raw Score 0.002910
Percentile 21.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00291
2026-10-28
0.00291

Intelligence Sources

nvd ref →

External Links