CVE-2025-40943
9.6CVSSCRITICAL
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:RUser InteractionRequired
Scope
S:CScopeChanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 98 more affected products View all →
Exploitability
Official Patch Available
References
https://cert-portal.siemens.com/productcert/html/ssa-452276.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-452276.json
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-071-04.json
raw.githubusercontent.com
and 10 more references View all →
Timeline
Published
Mar 10, 2026
Last Updated
Mar 19, 2026
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