CVE-2026-12569 — PTC Windchill and FlexPLM Improper Input Validation Vulnerability
CVE-2026-12569: PTC Windchill and FlexPLM Improper Input Validation Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | PTC |
| Product | Windchill and FlexPLM |
| Date added | 2026-06-25 |
| Due date | 2026-06-28 |
| Ransomware campaign use | Known |
Description
PTC Windchill and FlexPLM contains an improper input validation vulnerability allowing an unauthenticated, remote attacker to execute arbitrary code by sending a malicious request to the network.
Required action (CISA)
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.
Notes
https://www.ptc.com/en/support/article/CS473270 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-12569
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12569
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog