CVE-2026-77645 (GCVE-0-2026-77645)
Vulnerability from cvelistv5 – Published: 2026-08-20 22:08 – Updated: 2026-08-21 14:35
VLAI
EPSS
VEX
Title
Critical Remote Code Execution (RCE) vulnerability reported in Windchill
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 14:35 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ptc.com/en/support/article/CS474826 | vendor-advisorymitigationpermissions-required |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| PTC | Windchill PDMLink |
Affected:
11.0 M030
Affected: 11.1 M020 Affected: 11.2.1.0 Affected: 12.0.2.0 Affected: 12.1.2.0 Affected: 13.0.2.0 Affected: 13.1.0.0 Affected: 13.1.1.0 Affected: 13.1.2.0 Affected: 13.1.3.0 |
guessed | |
| PTC | FlexPLM |
Affected:
11.0 M030
Affected: 11.1 M020 Affected: 11.2.1.0 Affected: 12.0.0.0 Affected: 12.0.2.0 Affected: 12.0.3.0 Affected: 12.1.2.0 Affected: 12.1.3.0 Affected: 13.0.2.0 Affected: 13.0.3.0 |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77645",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T14:35:45.661919Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T14:35:55.732Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Windchill PDMLink",
"vendor": "PTC",
"versions": [
{
"status": "affected",
"version": "11.0 M030"
},
{
"status": "affected",
"version": "11.1 M020"
},
{
"status": "affected",
"version": "11.2.1.0"
},
{
"status": "affected",
"version": "12.0.2.0"
},
{
"status": "affected",
"version": "12.1.2.0"
},
{
"status": "affected",
"version": "13.0.2.0"
},
{
"status": "affected",
"version": "13.1.0.0"
},
{
"status": "affected",
"version": "13.1.1.0"
},
{
"status": "affected",
"version": "13.1.2.0"
},
{
"status": "affected",
"version": "13.1.3.0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FlexPLM",
"vendor": "PTC",
"versions": [
{
"status": "affected",
"version": "11.0 M030"
},
{
"status": "affected",
"version": "11.1 M020"
},
{
"status": "affected",
"version": "11.2.1.0"
},
{
"status": "affected",
"version": "12.0.0.0"
},
{
"status": "affected",
"version": "12.0.2.0"
},
{
"status": "affected",
"version": "12.0.3.0"
},
{
"status": "affected",
"version": "12.1.2.0"
},
{
"status": "affected",
"version": "12.1.3.0"
},
{
"status": "affected",
"version": "13.0.2.0"
},
{
"status": "affected",
"version": "13.0.3.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Arthur Aires (https://arthurair.es/)"
},
{
"lang": "en",
"type": "reporter",
"value": "brenocss (LinkedIn: @brenocss)"
},
{
"lang": "en",
"type": "reporter",
"value": "Bruno Milreu (LinkedIn: @bruno-milreu)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "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."
}
],
"value": "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."
}
],
"impacts": [
{
"capecId": "CAPEC-153",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-153 Input Data Manipulation"
}
]
},
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "YES",
"Recovery": "USER",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "RED",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "CONCENTRATED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "MODERATE"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper input validation",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of untrusted data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T22:08:41.642Z",
"orgId": "0b655efc-079c-4cb9-9e8d-164871239f4e",
"shortName": "PTC"
},
"references": [
{
"tags": [
"vendor-advisory",
"mitigation",
"permissions-required"
],
"url": "https://www.ptc.com/en/support/article/CS474826"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Critical Remote Code Execution (RCE) vulnerability reported in Windchill",
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
}
},
"cveMetadata": {
"assignerOrgId": "0b655efc-079c-4cb9-9e8d-164871239f4e",
"assignerShortName": "PTC",
"cveId": "CVE-2026-77645",
"datePublished": "2026-08-20T22:08:41.642Z",
"dateReserved": "2026-08-20T22:07:21.684Z",
"dateUpdated": "2026-08-21T14:35:55.732Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-77645",
"date": "2026-08-21",
"epss": "0.00472",
"percentile": "0.3911"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-77645\",\"sourceIdentifier\":\"0b655efc-079c-4cb9-9e8d-164871239f4e\",\"published\":\"2026-08-20T22:18:06.510\",\"lastModified\":\"2026-08-21T15:16:47.430\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"0b655efc-079c-4cb9-9e8d-164871239f4e\",\"affectedData\":[{\"vendor\":\"PTC\",\"product\":\"Windchill PDMLink\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"11.0 M030\",\"status\":\"affected\"},{\"version\":\"11.1 M020\",\"status\":\"affected\"},{\"version\":\"11.2.1.0\",\"status\":\"affected\"},{\"version\":\"12.0.2.0\",\"status\":\"affected\"},{\"version\":\"12.1.2.0\",\"status\":\"affected\"},{\"version\":\"13.0.2.0\",\"status\":\"affected\"},{\"version\":\"13.1.0.0\",\"status\":\"affected\"},{\"version\":\"13.1.1.0\",\"status\":\"affected\"},{\"version\":\"13.1.2.0\",\"status\":\"affected\"},{\"version\":\"13.1.3.0\",\"status\":\"affected\"}]},{\"vendor\":\"PTC\",\"product\":\"FlexPLM\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"11.0 M030\",\"status\":\"affected\"},{\"version\":\"11.1 M020\",\"status\":\"affected\"},{\"version\":\"11.2.1.0\",\"status\":\"affected\"},{\"version\":\"12.0.0.0\",\"status\":\"affected\"},{\"version\":\"12.0.2.0\",\"status\":\"affected\"},{\"version\":\"12.0.3.0\",\"status\":\"affected\"},{\"version\":\"12.1.2.0\",\"status\":\"affected\"},{\"version\":\"12.1.3.0\",\"status\":\"affected\"},{\"version\":\"13.0.2.0\",\"status\":\"affected\"},{\"version\":\"13.0.3.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"0b655efc-079c-4cb9-9e8d-164871239f4e\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":9.2,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"LOW\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"YES\",\"Recovery\":\"USER\",\"valueDensity\":\"CONCENTRATED\",\"vulnerabilityResponseEffort\":\"MODERATE\",\"providerUrgency\":\"RED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-21T14:35:45.661919Z\",\"id\":\"CVE-2026-77645\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"0b655efc-079c-4cb9-9e8d-164871239f4e\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"},{\"lang\":\"en\",\"value\":\"CWE-502\"}]}],\"references\":[{\"url\":\"https://www.ptc.com/en/support/article/CS474826\",\"source\":\"0b655efc-079c-4cb9-9e8d-164871239f4e\"}]}}",
"vulnrichment": {
"containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"0b655efc-079c-4cb9-9e8d-164871239f4e\", \"shortName\": \"PTC\", \"dateUpdated\": \"2026-08-20T22:08:41.642Z\"}, \"title\": \"Critical Remote Code Execution (RCE) vulnerability reported in Windchill\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20 Improper input validation\", \"type\": \"CWE\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-502\", \"description\": \"CWE-502 Deserialization of untrusted data\", \"type\": \"CWE\"}]}], \"impacts\": [{\"capecId\": \"CAPEC-153\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-153 Input Data Manipulation\"}]}, {\"capecId\": \"CAPEC-586\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-586 Object Injection\"}]}], \"affected\": [{\"vendor\": \"PTC\", \"product\": \"Windchill PDMLink\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.0 M030\"}, {\"status\": \"affected\", \"version\": \"11.1 M020\"}, {\"status\": \"affected\", \"version\": \"11.2.1.0\"}, {\"status\": \"affected\", \"version\": \"12.0.2.0\"}, {\"status\": \"affected\", \"version\": \"12.1.2.0\"}, {\"status\": \"affected\", \"version\": \"13.0.2.0\"}, {\"status\": \"affected\", \"version\": \"13.1.0.0\"}, {\"status\": \"affected\", \"version\": \"13.1.1.0\"}, {\"status\": \"affected\", \"version\": \"13.1.2.0\"}, {\"status\": \"affected\", \"version\": \"13.1.3.0\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"PTC\", \"product\": \"FlexPLM\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.0 M030\"}, {\"status\": \"affected\", \"version\": \"11.1 M020\"}, {\"status\": \"affected\", \"version\": \"11.2.1.0\"}, {\"status\": \"affected\", \"version\": \"12.0.0.0\"}, {\"status\": \"affected\", \"version\": \"12.0.2.0\"}, {\"status\": \"affected\", \"version\": \"12.0.3.0\"}, {\"status\": \"affected\", \"version\": \"12.1.2.0\"}, {\"status\": \"affected\", \"version\": \"12.1.3.0\"}, {\"status\": \"affected\", \"version\": \"13.0.2.0\"}, {\"status\": \"affected\", \"version\": \"13.0.3.0\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"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.\"}]}], \"references\": [{\"url\": \"https://www.ptc.com/en/support/article/CS474826\", \"tags\": [\"vendor-advisory\", \"mitigation\", \"permissions-required\"]}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV4_0\": {\"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"HIGH\", \"subIntegrityImpact\": \"LOW\", \"vulnAvailabilityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"LOW\", \"exploitMaturity\": \"NOT_DEFINED\", \"Safety\": \"NOT_DEFINED\", \"Automatable\": \"YES\", \"Recovery\": \"USER\", \"valueDensity\": \"CONCENTRATED\", \"vulnerabilityResponseEffort\": \"MODERATE\", \"providerUrgency\": \"RED\", \"version\": \"4.0\", \"baseSeverity\": \"CRITICAL\", \"baseScore\": 9.2, \"vectorString\": \"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\"}}], \"credits\": [{\"lang\": \"en\", \"value\": \"Arthur Aires (https://arthurair.es/)\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"brenocss (LinkedIn: @brenocss)\", \"type\": \"reporter\"}, {\"lang\": \"en\", \"value\": \"Bruno Milreu (LinkedIn: @bruno-milreu)\", \"type\": \"reporter\"}], \"source\": {\"discovery\": \"UNKNOWN\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-77645\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-21T14:35:45.661919Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-21T14:35:52.549Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-77645\", \"assignerOrgId\": \"0b655efc-079c-4cb9-9e8d-164871239f4e\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"PTC\", \"dateReserved\": \"2026-08-20T22:07:21.684Z\", \"datePublished\": \"2026-08-20T22:08:41.642Z\", \"dateUpdated\": \"2026-08-21T14:35:55.732Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…