# CVE-2019-18935

> Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. (As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.)

- **CVSS:** 9.8 (CRITICAL)
- **EPSS:** 93.6%
- **CISA KEV:** yes (known ransomware use)
- **CWE:** CWE-502

Canonical: https://intel.threadlinqs.com/cve/CVE-2019-18935
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp