CVE-2026-12569
Published 2026-06-18 · Updated 2026-08-01 · Source 0b655efc-079c-4cb9-9e8d-164871239f4e
Summary
CVE-2026-12569 is a critical-severity (CVSS 9.8) vulnerability in PTC Windchill and FlexPLM. CISA added it to the Known Exploited Vulnerabilities catalog on June 25, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 28, 2026. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly.
All 1 known-exploited PTC vulnerabilities →Description
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data. * This advisory also applies to all CPS versions * The identified vulnerability also impacts Windchill and FlexPLM releases prior to 11.0 M030
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: PTC — Windchill and FlexPLM
Name: PTC Windchill and FlexPLM Improper Input Validation Vulnerability
Date added: 2026-06-25 · Due: 2026-06-28
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.