---
id: "CVE-2026-12569"
kind: "vulnerability"
aliases: ["CVE-2026-12569"]
title: "A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "PTC Windchill and FlexPLM", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "<= 11.0m030", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 11.1m020", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 11.2.1.0", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 12.0.0.0", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 12.0.2.0", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 12.1.3.0", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 13.0.2.0", "ecosystem": "vendor"}, {"name": "ptc flexplm", "fixed": [], "affected": "= 13.0.3.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": ["11.0m030"], "affected": "< 11.0m030", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 11.0m030", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 11.1m020", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 11.2.1.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 12.0.2.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 12.1.2.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 13.0.2.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 13.1.0.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 13.1.1.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 13.1.2.0", "ecosystem": "vendor"}, {"name": "ptc windchill pdmlink", "fixed": [], "affected": "= 13.1.3.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["enterprise-plm", "exploited", "flexplm", "on-prem", "ptc-windchill", "ransomware", "vendor"]
not_affected_if: ["no-windchill-or-flexplm-deployed"]
published_at: "2026-06-18T01:18:12+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-12569", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12569", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM

PTC Windchill and FlexPLM have an improper input validation flaw that lets an unauthenticated remote attacker run arbitrary code by sending a malicious request over the network. CISA lists it as actively exploited, and the KEV entry notes ransomware use.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:PTC Windchill and FlexPLM affected ? fixed ?
- vendor:ptc flexplm affected <= 11.0m030 fixed ?
- vendor:ptc flexplm affected = 11.1m020 fixed ?
- vendor:ptc flexplm affected = 11.2.1.0 fixed ?
- vendor:ptc flexplm affected = 12.0.0.0 fixed ?
- vendor:ptc flexplm affected = 12.0.2.0 fixed ?
- vendor:ptc flexplm affected = 12.1.3.0 fixed ?
- vendor:ptc flexplm affected = 13.0.2.0 fixed ?
- vendor:ptc flexplm affected = 13.0.3.0 fixed ?
- vendor:ptc windchill pdmlink affected < 11.0m030 fixed 11.0m030
- vendor:ptc windchill pdmlink affected = 11.0m030 fixed ?
- vendor:ptc windchill pdmlink affected = 11.1m020 fixed ?
- vendor:ptc windchill pdmlink affected = 11.2.1.0 fixed ?
- vendor:ptc windchill pdmlink affected = 12.0.2.0 fixed ?
- vendor:ptc windchill pdmlink affected = 12.1.2.0 fixed ?
- vendor:ptc windchill pdmlink affected = 13.0.2.0 fixed ?
- vendor:ptc windchill pdmlink affected = 13.1.0.0 fixed ?
- vendor:ptc windchill pdmlink affected = 13.1.1.0 fixed ?
- vendor:ptc windchill pdmlink affected = 13.1.2.0 fixed ?
- vendor:ptc windchill pdmlink affected = 13.1.3.0 fixed ?

## How to check

Identify any Windchill or FlexPLM servers reachable from the internet or untrusted networks, and record their installed versions.

## Fix

Apply the mitigations and patches from PTC's vendor advisory, as directed by CISA BOD 26-04; if no mitigation exists, take the product offline.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-12569
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-12569

## From the sources

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.

CISA 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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_