CVE-2025-40943 | THREATINT

Description

Affected devices do not properly sanitize contents of trace files. This could allow an attacker to inject code through social engineering an authorized user, who has the function right "Read diagnostics", to import a specially crafted trace file. The malicious trace file is insufficiently sanitized and malicious code could be executed in the clients browser session and trigger PLC operations via the webserver that the legitimate user is authorized to perform.

PUBLISHED Reserved 2025-04-16 | Published 2026-03-10 | Updated 2026-03-19 | Assigner siemens

CRITICAL: 9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CRITICAL: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

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References

cert-portal.siemens.com/productcert/html/ssa-452276.html

cve.org (CVE-2025-40943)

nvd.nist.gov (CVE-2025-40943)

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