CVE-2026-124704 PUBLISHED

Deserialization of Untrusted Data in Progress Telerik UI for WPF

Assigner: ProgressSoftware
Reserved: 09.11.2026 Published: 12.11.2026 Updated: 12.11.2026

In Telerik UI for WPF, versions prior to 2026.4.1110, a deserialization of untrusted data vulnerability exists that allows an attacker to perform unauthorized actions in the context of the affected application.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Progress Software
Product	Telerik UI for WPF
Versions	Default: unaffected affected from 2026.3.1007 to 2026.4.1110 (excl.)

References

https://www.telerik.com/products/wpf/documentation/knowledge-base/kb-security-deserialization-of-untrusted-data-cve-2026-124704

Problem Types

CWE-502 Deserialization of Untrusted Data CWE

Impacts

Object Injection