PTC Windchill and FlexPLM Improper Input Validation Vulnerability
PTC — Windchill PDMLink
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
9.3
1.2%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (Vulnerable System)
- High
- Integrity (Vulnerable System)
- High
- Availability (Vulnerable System)
- High
- Confidentiality (Subsequent System)
- Low
- Integrity (Subsequent System)
- Low
- Availability (Subsequent System)
- Low
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:Red
- Published
- Jun 18, 2026
- Modified
- Jun 30, 2026
- Added to KEV
- Jun 25, 2026
- Federal patch due
- Jun 28, 2026
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.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2026-12569, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2026-12569 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2026-12569?
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
How severe is CVE-2026-12569?
CVE-2026-12569 has a CVSS base score of 9.3 out of 10 (CVSS 4.0).
Is CVE-2026-12569 actively exploited in the wild?
Yes. CVE-2026-12569 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jun 25, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2026-12569?
1.2% - meaning FIRST.org's EPSS model estimates a 1.2% probability this vulnerability will be exploited in the wild within 30 days (66% percentile among all scored CVEs).
What type of vulnerability is CVE-2026-12569?
CVE-2026-12569 is classified under CWE-20, CWE-502 (CWE-20 Improper input validation).
Cross-checked against
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