# CVE-2017-11317: Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability

> CVE-2017-11317: Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2017-11317
Last updated: 2025-10-21T23:55:35Z

- Published: 2017-08-23 17:00 UTC · Updated: 2025-10-21 23:55 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 84.2%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-04-11, federal due date 2022-05-02, ransomware use: Unknown

## Description

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2017-11317)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2017-11317)
- [http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html](http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html)
- [https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006)
- [https://www.exploit-db.com/exploits/43874/](https://www.exploit-db.com/exploits/43874/)
- [http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-upload](http://www.telerik.com/support/kb/aspnet-ajax/upload-(async%29/details/unrestricted-file-upload)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2017-11317 · Markdown: https://rewindex.com/cve/CVE-2017-11317.md · JSON: https://rewindex.com/api/v1/cves/CVE-2017-11317 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:45:43.355Z