Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability

Added to KEV
2022-04-11
Federal due date
2022-05-02
Vendor
Telerik
Product
User Interface (UI) for ASP.NET AJAX
EPSS
99.7th percentile (score 0.920, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2017-11317

CISA short description

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.