Summary
On October 21, 2026, the Node.js project released security updates addressing a critical vulnerability in the Brotli decoder bundled with Node.js, commonly referred to as "Node2Shell" (tracked as CVE-2026-111497). The vulnerability is an out-of-bounds write that could allow a remote attacker to cause memory corruption and potentially execute arbitrary code. This advisory covers the status of impact of various Siemens software products.
Please also have a look on following Software Field Bulletins:
Teamcenter: https://support.sw.siemens.com/en-US/knowledge-base/PL8869204
Polarion: https://support.sw.siemens.com/en-US/knowledge-base/PL8869197
Manufacturing Operations Center (Opcenter) and Process Preparation X: https://support.sw.siemens.com/en-US/knowledge-base/PL8869211
Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet available.
Vulnerabilities 1
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Critical 9.2
Out-of-Bounds Write in Google Brotli Decoder
A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause …
KEV Oct 27, 2026
Revision history
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#1
Publication Date
References
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SSA-678870: Node2Shell/Broccoli2Shell Vulnerabilities in Siemens Software Products - HTML Version
https://cert-portal.siemens.com/productcert/html/ssa-678870.html