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CVE-2026-124699— Improper Control of Generation of Code in Progress Telerik UI for WinForms

Quick assessment

Affected
Progress Software Telerik UI for WinForms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Telerik UI for WinForms 2026.4.1111 之前的版本中，存在一个代码生成控制不当的漏洞。攻击者可利用该漏洞提供精心构造的表达式，从而在受影响应用程序的上下文中执行未授权代码。

CVSS 7.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-124699

Vulnerability Information
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Vulnerability Title
Improper Control of Generation of Code in Progress Telerik UI for WinForms
Source: CVE Program / CVE List V5
Vulnerability Description
In Telerik UI for WinForms, versions prior to 2026.4.1111, an improper control of code generation vulnerability exists that allows an attacker to supply a crafted expression and execute unauthorized code in the context of the affected application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Progress Software Telerik UI for WinForms 2026.3.1007 ~ 2026.4.1111 -

II. Public POCs for CVE-2026-124699

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-124699

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Other References for CVE-2026-124699 (1)

Same Patch Batch · Progress Software · 2026-11-12 · 7 CVEs total

CVE-2026-124701 7.8 HIGH Deserialization of Untrusted Data in Progress Telerik UI for WinForms
CVE-2026-124704 7.8 HIGH Deserialization of Untrusted Data in Progress Telerik UI for WPF
CVE-2026-124703 7.8 HIGH Improper Control of Generation of Code in Progress Telerik UI for WPF
CVE-2026-124705 7.8 HIGH URL Redirection to Untrusted Site in Progress Telerik UI for .NET MAUI
CVE-2026-106140 7.3 HIGH Deserialization of Untrusted Data in Telerik Reporting Report Designers
CVE-2026-118975 6.5 MEDIUM XML External Entity (XXE) Injection in Telerik Reporting SVG Processing

IV. Related Vulnerabilities

Same product: Telerik UI for WinForms
Same vendor: Progress Software
Same weakness: CWE-94