A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC WinCC Unified PC Runtime V20 (All versions), SIMATIC WinCC Unified PC Runtime V21 (All versions < V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00005.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Siemens SIMATIC WinCC Unified PC Runtime V16 unknown
Version Status Constraints
0 affected < *
Siemens SIMATIC WinCC Unified PC Runtime V17 unknown
Version Status Constraints
0 affected < *
Siemens SIMATIC WinCC Unified PC Runtime V18 unknown
Version Status Constraints
0 affected < *
Siemens SIMATIC WinCC Unified PC Runtime V19 unknown
Version Status Constraints
0 affected < *
Siemens SIMATIC WinCC Unified PC Runtime V20 unknown
Version Status Constraints
0 affected < *
Siemens SIMATIC WinCC Unified PC Runtime V21 unknown
Version Status Constraints
0 affected < V21 Update 2

No data.

No data.

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Vendors Products
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Simatic Wincc Unified Pc Runtime Subscribe

Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-063511.html cve-icon cve-icon
History

Tue, 09 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Siemens
Siemens simatic Wincc Unified Pc Runtime
Vendors & Products Siemens
Siemens simatic Wincc Unified Pc Runtime

Tue, 09 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 09 Jun 2026 11:45:00 +0000

Type Values Removed Values Added
Title Insecure Storage of Key Material in SIMATIC WinCC Unified PC Runtime

Tue, 09 Jun 2026 10:15:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC WinCC Unified PC Runtime V20 (All versions), SIMATIC WinCC Unified PC Runtime V21 (All versions < V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information.
Weaknesses CWE-313
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2026-06-09T12:54:20.058Z

Reserved: 2026-01-22T13:21:49.113Z

Link: CVE-2026-24349

cve-icon Vulnrichment

Updated: 2026-06-09T12:54:14.543Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T10:16:42.967

Modified: 2026-06-09T13:49:39.993

Link: CVE-2026-24349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T20:21:07Z

Weaknesses