CVE-2026-124699
Improper Control of Generation of Code in Progress Telerik UI for WinForms
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Telerik UI for WinForms Progress Software |
≥ 2026.3.1007; < 2026.4.1111 (affected, custom)
Other versions: unaffected |
CNA: ProgressSoftware |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.8 high |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA: ProgressSoftware |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.telerik.com/products/winforms/documentation/knowledge-base/kb-security-improper-control-of-generation-of-code-cve-2026-124699CNA: ProgressSoftware · vendor-advisory
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