Critical Remote Code Execution (RCE) vulnerability reported in Windchill
Summary
| CVE | CVE-2026-77645 |
|---|---|
| State | PUBLISHED |
| Assigner | PTC |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-20 22:18:06 UTC |
| Updated | 2026-08-21 15:16:47 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 9.2 CRITICAL from 0b655efc-079c-4cb9-9e8d-164871239f4e
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:M/U:Red
Problem Types: CWE-20 | CWE-502 | CWE-20 CWE-20 Improper input validation | CWE-502 CWE-502 Deserialization of untrusted data
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 0b655efc-079c-4cb9-9e8d-164871239f4e | Secondary | 9.2 | CRITICAL | 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/E:X/C... |
| 4.0 | CNA | CVSS | 9.2 | CRITICAL | 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/... |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
LowSub Integrity
LowSub Availability
LowCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:M/U:Red
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | PTC | Windchill PDMLink | affected 11.0 M030 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 11.1 M020 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 11.2.1.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 12.0.2.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 12.1.2.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 13.0.2.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 13.1.0.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 13.1.1.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 13.1.2.0 | Not specified |
| CNA | PTC | Windchill PDMLink | affected 13.1.3.0 | Not specified |
| CNA | PTC | FlexPLM | affected 11.0 M030 | Not specified |
| CNA | PTC | FlexPLM | affected 11.1 M020 | Not specified |
| CNA | PTC | FlexPLM | affected 11.2.1.0 | Not specified |
| CNA | PTC | FlexPLM | affected 12.0.0.0 | Not specified |
| CNA | PTC | FlexPLM | affected 12.0.2.0 | Not specified |
| CNA | PTC | FlexPLM | affected 12.0.3.0 | Not specified |
| CNA | PTC | FlexPLM | affected 12.1.2.0 | Not specified |
| CNA | PTC | FlexPLM | affected 12.1.3.0 | Not specified |
| CNA | PTC | FlexPLM | affected 13.0.2.0 | Not specified |
| CNA | PTC | FlexPLM | affected 13.0.3.0 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.ptc.com/en/support/article/CS474826 | 0b655efc-079c-4cb9-9e8d-164871239f4e | www.ptc.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Arthur Aires (https://arthurair.es/) (en)
CNA: brenocss (LinkedIn: @brenocss) (en)
CNA: Bruno Milreu (LinkedIn: @bruno-milreu) (en)
There are currently no legacy QID mappings associated with this CVE.