CVE-2017-11357

CRITICAL9.8

CISA KEV

Published 2017-08-23 · Updated 2026-08-14 · Source cve@mitre.org

Summary

CVE-2017-11357 is a critical-severity (CVSS 9.8) vulnerability in Telerik User Interface (UI) for ASP.NET AJAX. CISA added it to the Known Exploited Vulnerabilities catalog on January 26, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 16, 2023. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Telerik has 2 vulnerabilities in the KEV catalog, 1 of them linked to ransomware.

All 2 known-exploited Telerik vulnerabilities →

Description

Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-434CWE-434

CISA Known-Exploited Vulnerability

Product: Telerik — User Interface (UI) for ASP.NET AJAX

Name: Telerik UI for ASP.NET AJAX Insecure Direct Object Reference Vulnerability

Date added: 2023-01-26 · Due: 2023-02-16

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Telerik vulnerabilities

Most recently added to CISA KEV

CVE-2017-11317
User Interface (UI) for ASP.NET AJAX — Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability
added 2022-04-11

View all →

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