CVE-2017-11357
Telerik UI for ASP.NET AJAX Insecure Direct Object Reference Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 26 Jan 2023
- Used in ransomware campaigns
- A public exploit reference is listed
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.
Key facts
- Published
- 23 Aug 2017
- Last changed
- 14 Aug 2026
- Assigned by
- mitre
- KEV added
- 26 Jan 2023
- KEV fix due
- 16 Feb 2023
- Used in ransomware
- Yes, according to CISA
- EPSS
- 77.679% likely to be exploited in the next 30 days, higher than 99.572% 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
- 26 Jan 2023 CVE-2017-11357 added to CISA KEV
- 26 Jan 2023 Added to the CISA KEV catalogue