CVE-2026-4681 PUBLISHED

Critical Remote Code Execution vulnerability reported in Windchill

Assigner: PTC
Reserved: 23.03.2026 Published: 23.03.2026 Updated: 24.03.2026

A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.

This issue affects Windchill PDMLink: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.2.0, 12.1.2.0, 13.0.2.0, 13.1.0.0, 13.1.1.0, 13.1.2.0, 13.1.3.0; FlexPLM: 11.0 M030, 11.1 M020, 11.2.1.0, 12.0.0.0, 12.0.2.0, 12.0.3.0, 12.1.2.0, 12.1.3.0, 13.0.2.0, 13.0.3.0.

Metrics

CVSS 4.0

CVSS Vector: 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/RE:M/U:Red
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	Low
Attack Complexity	Low	Integrity	High	Integrity	Low
Attack Requirements	None	Availability	High	Availability	Low
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	PTC
Product	Windchill PDMLink
Versions	Default: unknown Version 11.0 M030 is affected Version 11.1 M020 is affected Version 11.2.1.0 is affected Version 12.0.2.0 is affected Version 12.1.2.0 is affected Version 13.0.2.0 is affected Version 13.1.0.0 is affected Version 13.1.1.0 is affected Version 13.1.2.0 is affected Version 13.1.3.0 is affected

Vendor	PTC
Product	FlexPLM
Versions	Default: unknown Version 11.0 M030 is affected Version 11.1 M020 is affected Version 11.2.1.0 is affected Version 12.0.0.0 is affected Version 12.0.2.0 is affected Version 12.0.3.0 is affected Version 12.1.2.0 is affected Version 12.1.3.0 is affected Version 13.0.2.0 is affected Version 13.0.3.0 is affected

References

https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability?srsltid=AfmBOop3e7Nthx5-BsrjKdpZi50wL6l6Bt21Fz0gUub2cIPgdPGV5bNl

Problem Types

CWE-94: Improper Control of Generation of Code ('Code Injection') CWE

Impacts

CAPEC-242 Code Injection