Telerik UI flaw enables unauthenticated remote code execution

A TantoSec proof-of-concept exploits an AES-CBC flaw in Telerik UI for ASP.NET AJAX.

Published 5h1 sourceImportant

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The fact

The vulnerability, patched in July, only affects non-default configurations.

No confirmed malicious exploitation has been reported so far.

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Auto-synthesis from 1 media source · identified on September 7, 2026