SSA-979641

Vulnerability from csaf_siemens - Published: 2026-11-10 00:00 - Updated: 2026-11-10 00:00
Summary
SSA-979641: Implicit Execution of Active Content when Opening Files Vulnerability in SIMATIC WinCC Graphics Designer
Notes
Summary: Graphics Designer of SIMATIC WinCC before V8.2 contains an implicit active content execution vulnerability upon opening files, which could allow an attacker to cause arbitrary code execution on the device. Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet available.
General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use: The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
CVE-2026-59082

Affected devices implicitly execute active content when opening files. This could allow an attacker to make the user execute arbitrary code on the device.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-357 - Insufficient UI Warning of Dangerous Operations
Affected products
Product Identifier Version Remediation
SIMATIC WinCC V7.5
Siemens / SIMATIC WinCC V7.5
 vers:all/*
Mitigation
None Available
SIMATIC WinCC V8.0
Siemens / SIMATIC WinCC V8.0
 vers:all/*
Mitigation
None Available
SIMATIC WinCC V8.1
Siemens / SIMATIC WinCC V8.1
 vers:all/*
Mitigation
None Available
References
To clipboard 

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        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
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      },
      "notes": [
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          "title": "CVE Description"
        }
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      "product_status": {
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          "1",
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      "remediations": [
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          "product_ids": [
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    }
  ]
}



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