What’s Vulnerable › Vulnerabilities

CVE-2026-12569: PTC Windchill and FlexPLM Improper Input Validation Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-06-25
• EPSS: 46.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-18 · updated 2026-08-01
• Weakness: CWE-20

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

Affected products

• PTC FlexPLM: through 11.0m030; 11.1m020, 11.2.1.0, 12.0.0.0, 12.0.2.0, 12.1.3.0, 13.0.2.0 (+1)
• PTC Windchill PDMLink: before 11.0m030; 11.0m030, 11.1m020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0 (+4) — fixed in 11.0m030

How to fix

Upgrade to a fixed version: PTC Windchill PDMLink 11.0m030. Check the vendor advisory for mitigations.

References

• https://www.ptc.com/en/support/article/CS473270
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-12569

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