CVE-2026-4681: Indicators of active attacks on PTC Windchill and FlexPLM — who must act now
CVE-2026-4681 is a critical remote-code-execution flaw in PTC Windchill PDMLink and FlexPLM tied to unsafe deserialization; independent detections show Indicators of Compromise (IOCs) consistent with active exploitation attempts, so organizations running affected versions should treat this as an incident in progress rather than a purely theoretical risk. Which deployments are at highest immediate risk The […]