Quick answers
- Is CVE-2026-124704 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124704 being exploited in the wild.
- How severe is CVE-2026-124704?
- High severity, with a CVSS score of 7.8, published 12 November 2026.
- Which products and versions are affected?
- Progress Telerik UI for WPF prior to 2026.4.1110.
- Is there a fix for CVE-2026-124704?
- Yes: fixed in 2026.4.1110. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124704 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-124704?
- Check whether you run Progress Telerik UI for WPF at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2026.4.1110
Technical details
A CWE-502 deserialization of untrusted data vulnerability in Telerik UI for WPF allows attackers to inject malicious objects via object injection (CAPEC-586). The vulnerability affects versions prior to 2026.4.1110 and can be exploited to gain unauthorized code execution in the context of the affected application, typically via network or local attack vectors depending on how the application accepts and deserializes data.
Affected products
- Progress Telerik UI for WPF prior to 2026.4.1110
Timeline
- 2026-11-12: disclosed
- 2026-11-11: advisory