CVE-2026-2878: Insufficient Entropy Vulnerability in Telerik UI for ASP.NET AJAX
Progress Software · Telerik UI for ASP.NET AJAX
Vendor fix available · Affected: Progress Software Telerik UI for ASP.NET AJAX · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 11% of scored CVEs
DescriptionCVE.org
In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Progress Software · Telerik UI for ASP.NET AJAXfrom 2011.2.712 before 2026.1.225
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Progress Software
- Published
- February 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-2878 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.