CVE-2026-4681

Critical Remote Code Execution vulnerability reported in Windchill

State: Published
Severity: 9.3 Critical
Published: Mar 23, 2026
Updated: Mar 24, 2026
Reserved: Mar 23, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	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	PTC

Weaknesses

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

Affected Products

Product	Versions
Windchill PDMLinkPTC	11.0 M030Affected 11.1 M020Affected 11.2.1.0Affected 12.0.2.0Affected 12.1.2.0Affected 13.0.2.0Affected 13.1.0.0Affected 13.1.1.0Affected 13.1.2.0Affected 13.1.3.0Affected
FlexPLMPTC	11.0 M030Affected 11.1 M020Affected 11.2.1.0Affected 12.0.0.0Affected 12.0.2.0Affected 12.0.3.0Affected 12.1.2.0Affected 12.1.3.0Affected 13.0.2.0Affected 13.0.3.0Affected

References

https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability?srsltid=AfmBOop3e7Nthx5-BsrjKdpZi50wL6l6Bt21Fz0gUub2cIPgdPGV5bNlvendor-advisorymitigation

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