Critical severityNVD Advisory· Published Mar 23, 2026· Updated Jun 17, 2026
CVE-2026-4681
CVE-2026-4681
Description
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.
This issue affects Windchill PDMLink: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0; FlexPLM: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.0.0, 12.0.2.0, 12.0.3.0, 12.1.2.0, 12.1.3.0, 13.0.2.0, 13.0.3.0.
Affected products
411.0 M030, 11.1 M020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0+ 1 more
- (no CPE)range: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0
- (no CPE)range: 11.0 M030
Patches
Vulnerability mechanics
References
1News mentions
4- Clop Tied to PTC Product Lifecycle Management Software HitsGovInfoSecurity · Jul 27, 2026
- Clop ransomware targets Windchill, FlexPLM in data theft attacksBleepingComputer · Jul 24, 2026
- JSP webshells being dropped on unpatched PTC Windchill instancesHelp Net Security · Jun 29, 2026
- First-Ever Exploitation of PTC Windchill Vulnerability Discovered in the WildSecurityWeek · Jun 26, 2026