CVE-2026-4681
Critical Remote Code Execution vulnerability reported in Windchill
10.0CVSSCRITICAL
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:CScopeChanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
ptccommercialUSICS / OT / IoTaka kepware kepserverex, thingworx industrial connectivity, thingworx kepware server
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Execution
Initial Access
References
https://www.ptc.com/en/about/trust-center/advisory-center/active-advisories/windchill-flexplm-critical-vulnerability?srsltid=AfmBOop3e7Nthx5-BsrjKdpZi50wL6l6Bt21Fz0gUub2cIPgdPGV5bNl
ptc.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-085-03.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-26-085-03
cisa.gov
and 15 more references View all →
Timeline
Published
Mar 23, 2026
Last Updated
Mar 24, 2026
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