PTC Windchill and FlexPLM Improper Input Validation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
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.
CISA 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
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
Severity
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/AU:Y/R:U/V:C/U:RedExploitation Context
as of October 17, 2026- CISA added CVE-2026-12569 to the KEV catalog 7 days after its CVE record was published. The median for entries added in 2026 so far is 14 days.
- Its current EPSS score (46.0%) is higher than that of 48% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| PTC | PTC Windchill PDMLink | 0 to 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 |
| PTC | PTC FlexPLM | 0 to 11.0 M030 11.1 M020 11.2.1.0 12.0.0.0 12.0.2.0 12.1.2.0 12.1.3.0 13.0.2.0 13.0.3.0 |
References
1 LinksRecord Details
Related
Tool categories
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.