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CVE-2025-40943
CRITICAL9.6
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.
CVE Details
CVSS v3.1 Score9.6
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
Published3/10/2026
Last Modified3/19/2026
Sourcenvd
Honeypot Sightings0
Weaknesses (CWE)
CWE-95
References
https://cert-portal.siemens.com/productcert/html/ssa-452276.html(productcert@siemens.com)
IOC Correlations
No correlations recorded
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