Exploited· due 2023-02-169.8criticalCriticalused in ransomware
CVE-2017-11357
Progress Telerik Ui For Asp.Net Ajax
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.
Exploitation status
- CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
- It is known to have been used in ransomware campaigns.
- US federal civilian agencies are required to remediate it by 2023-02-16. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
- A vendor advisory or patch reference has been published.
Required action
Apply updates per vendor instructions.
CISA’s wording, unedited.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 9.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-434
- Assigned by
- cve@mitre.org
Dates
- Published
- 2017-08-23
- Last modified
- 2026-08-14
- Added to KEV
- 2023-01-26
- Remediation due
- 2023-02-16
- Sources
- CISA KEV, NVD
Affected products
- Progress Telerik Ui For Asp.Net Ajax- 2020.1.114
As listed in the NVD configuration data. Not a statement about your estate.