CVE-2026-2878CWE-331

Insufficient Entropy Vulnerability in Telerik UI for ASP.NET AJAX

Medium · published February 25, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00309 · 22.5th percentile
Weakness
CWE-331 · Insufficient Entropy
Published
2026-02-25T14:45Z
EPSS history
Timeline
  • 25 FEB 14:45Z
    Insufficient Entropy Vulnerability in Telerik UI for ASP.NET AJAX
    cvelistv5