{"affected":[{"defaultStatus":"unaffected","product":"Telerik UI for WinForms","source":"CNA: ProgressSoftware","vendor":"Progress Software","versions":[{"lessThan":"2026.4.1111","status":"affected","version":"2026.3.1007","versionType":"custom"}]}],"cveId":"CVE-2026-124701","cwes":["CWE-502"],"description":"In Telerik UI for WinForms, versions prior to 2026.4.1111, a deserialization of untrusted data vulnerability exists that allows an attacker to perform unauthorized actions in the context of the affected application.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.8,"severity":"high","source":"CNA: ProgressSoftware","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},{"score":7.8,"severity":"high","source":"NVD: security@progress.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794482230473,"publishedAt":1794480353345,"references":[{"source":"CNA: ProgressSoftware","tags":["vendor-advisory"],"url":"https://www.telerik.com/products/winforms/documentation/knowledge-base/kb-security-deserialization-of-untrusted-data-cve-2026-124701"},{"source":"security@progress.com","tags":[],"url":"https://www.telerik.com/products/winforms/documentation/knowledge-base/kb-security-deserialization-of-untrusted-data-cve-2026-124701"}],"remediation":[],"revision":"f1a323db8d67f944cf63c2c09a5c3587d0be65808877365483fbbcec73c93ed5","sources":[{"modifiedAt":1794480353345,"name":"CNA: ProgressSoftware","retrievedAt":1794481702264,"url":"https://www.cve.org/CVERecord?id=CVE-2026-124701"},{"modifiedAt":1794482230473,"name":"NVD","retrievedAt":1794485820757,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124701"}],"ssvc":null,"status":"published","title":"Deserialization of Untrusted Data in Progress Telerik UI for WinForms","updatedAt":1794485820757}