CVE-2017-11317
Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 11 Apr 2022
- A public exploit reference is listed
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.
Key facts
- Published
- 23 Aug 2017
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 11 Apr 2022
- KEV fix due
- 2 May 2022
- EPSS
- 84.175% likely to be exploited in the next 30 days, higher than 99.701% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 23 Aug 2017 Published
- 11 Apr 2022 CVE-2017-11317 added to CISA KEV
- 11 Apr 2022 Added to the CISA KEV catalogue