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Telerik UI Padding-Oracle Chained to Unauthenticated RCE — PoC Public

2026-09-07 16:27 UTC · The Hacker News · read the source ↗ #telerik-ui#padding-oracle#rce
  • Engineer — Act: A working unauthenticated RCE exploit chain against Telerik UI for ASP.NET AJAX is now public; apply the July Progress patch immediately and audit whether any deployments use the affected non-default AES-CBC configuration that enables the oracle.
  • SOC/IR — Plan: No confirmed wild exploitation or published IOCs yet, but the public PoC warrants building detections for anomalous HTTP requests targeting Telerik AJAX endpoints — prepare Sigma/SPL rules now so you’re ready if exploitation picks up.
  • Leader — Skip
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.