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Siemens SIMATIC: Affected devices do not properly validate and sanitize visual properties of calculated signals contained in imported CSV

Siemens SIMATIC · CVE-2026-63351
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What is it?

Affected devices do not properly validate and sanitize visual properties of calculated signals contained in imported CSV trace files before rendering them on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially crafted trace file. Successful exploitation could allow attacker-controlled JavaScript to execute in the user’s browser session and perform PLC operations through the web server within the scope of the user’s authorization.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
6.1
EPSS
0.2%
First seen
8 h ago
Status
corroborated

All Siemens vulnerabilities