CVE-2017-9248 Progress CVE debrief

Who should care

Administrators, application owners, and security teams responsible for Progress Telerik UI for ASP.NET AJAX and Sitefinity deployments, especially where the software is exposed to untrusted networks.

Technical summary

The available official metadata identifies a cryptographic weakness in Progress Telerik UI for ASP.NET AJAX and Sitefinity. The corpus does not provide deeper technical mechanics or CVSS scoring, but CISA has designated the issue as known exploited and references vendor-directed updates as the required action.

Defensive priority

High — CISA KEV-listed and marked as known exploited.

Recommended defensive actions

• Inventory all deployments of Progress Telerik UI for ASP.NET AJAX and Sitefinity.
• Apply updates per vendor instructions as directed in the CISA KEV entry.
• Prioritize remediation of any internet-facing or externally reachable instances.
• Validate that patched versions are in place and remove or isolate unsupported instances.

Evidence notes

Official evidence in the supplied corpus comes from the CISA Known Exploited Vulnerabilities catalog entry for CVE-2017-9248, which states the affected vendor/product as Progress ASP.NET AJAX and Sitefinity, notes known exploitation status, and directs applying updates per vendor instructions. The official CVE and NVD links are included for record lookup, but the corpus does not supply additional technical detail or a CVSS score.

Official resources