fixnx
criticalCISA KEVCVE-2026-12569

PTC Windchill and FlexPLM Improper Input Validation Vulnerability

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.

ProductWindchill and FlexPLM
CVSS9.3
EPSS0.01247
UpdatedJuly 9, 2026

Quick answer

PTC Windchill and FlexPLM should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.

Who is affected

Affected versions

  • 11.1m020
  • 11.2.1.0
  • 12.0.0.0
  • 12.0.2.0
  • 12.1.3.0
  • 13.0.2.0
  • 13.0.3.0
  • 11.0m030
  • 12.1.2.0
  • 13.1.0.0
  • 13.1.1.0
  • 13.1.2.0
  • 13.1.3.0

Fixed versions

  • Apply the latest vendor-supported patched version.

How to fix it

PTC Windchill and FlexPLM are affected by an unauthenticated remote code execution risk from improper input validation. Apply the PTC advisory update, restrict public access, and review PLM servers for command execution or modified content. Internet-facing PLM portals should be treated as urgent incident response targets.

  1. Inventory Windchill and FlexPLM servers, versions, integrations, reverse proxies, and public access points.
  2. Apply the PTC fixed release or patch referenced in the official advisory for CVE-2026-12569.
  3. Restrict Windchill and FlexPLM access to trusted networks, VPN, SSO, and MFA-protected user groups where possible.
  4. Review customizations, codebase directories, method servers, workflow templates, queues, and uploaded files for unauthorized changes.
  5. Inspect web, application, method server, and OS logs for malicious requests or command execution artifacts.
  6. Rotate administrator credentials, integration accounts, database credentials, and SSO secrets if suspicious activity is found.
  7. Rebuild application nodes from trusted artifacts if filesystem integrity cannot be verified.

Scan now. Google sign-in is only needed to unlock fix guidance.

Verify the fix

  • Confirm the deployed Windchill and FlexPLM version or patch level is fixed for CVE-2026-12569.
  • Validate unauthenticated requests cannot reach the vulnerable execution path.
  • Review logs and file integrity evidence for exploitation or unauthorized changes.
  • Test PLM login, search, document, workflow, and integration functions after remediation.
  • Run a Fixnx scan and confirm no public vulnerable PLM endpoint remains exposed.

Related categories

windchill-and-flexplm

Trusted references

CISA KEV entryCISA KEV, NVDSource advisoryCISA KEV, NVDCISA KEV entryCISA KEV, NVDCISA KEV entryCISA KEV, NVDSource advisoryCISA KEV, NVD

FAQ

What is affected by CVE-2026-12569?

PTC Windchill and FlexPLM versions listed as affected should be reviewed: 11.1m020, 11.2.1.0, 12.0.0.0, 12.0.2.0, 12.1.3.0, 13.0.2.0, 13.0.3.0, 11.0m030, 12.1.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0.

What should I fix first?

Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.

How do I confirm the fix worked?

Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.

Why can this risk appear in multiple categories?

A vulnerability can belong to more than one platform or ecosystem. Fixnx keeps one canonical risk page while also listing it in every relevant category.