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CVE-2026-12569

PTC Windchill and FlexPLM Improper Input Validation Vulnerability

PTC Windchill and FlexPLM CWE-20

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

CVSS Score
9.3
Critical
EPSS — Exploit Probability
41%
Riskier than 99% of all CVEs · checked 2026-09-20
Exploitation
Confirmed in the wild
Used in ransomware campaigns
Remediation
unknown
Federal deadline 2026-06-28
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. Deadline for federal agencies: 2026-06-28.

NVD entry PoC / advisory CISA KEV

11 articles across 6 outlets · first covered Jun 25, 2026 · latest Aug 21, 2026

Associated threat actors

Cl0p Clop

Coverage timeline

Related CVEs — PTC

CVE-2026-4681