CVE-2026-77645

Critical Remote Code Execution (RCE) vulnerability reported in Windchill

Published Aug 20, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ptc
Ptc flexplm
Ptc windchill Pdmlink
Vendors & Products Ptc
Ptc flexplm
Ptc windchill Pdmlink
Type Values Removed Values Added
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.
Title Critical Remote Code Execution (RCE) vulnerability reported in Windchill
Weaknesses CWE-20
CWE-502
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:H/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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PTC
Published
Updated
Aug 22, 2026, 3:55 AM
Reserved
Aug 20, 2026, 10:07 PM
Status
Deferred
Published
Aug 20, 2026, 10:18 PM
Modified
Oct 26, 2026, 10:10 AM