CVE-2026-77645
Critical Remote Code Execution (RCE) vulnerability reported in Windchill
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.
INFO
Published Date :
Aug. 20, 2026, 10:18 p.m.
Last Modified :
Aug. 20, 2026, 10:18 p.m.
Remotely Exploit :
Yes !
Source :
0b655efc-079c-4cb9-9e8d-164871239f4e
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | 0b655efc-079c-4cb9-9e8d-164871239f4e | ||||
| CVSS 4.0 | CRITICAL | 0b655efc-079c-4cb9-9e8d-164871239f4e |
Solution
- Update PTC Windchill and PTC FlexPLM to the latest version.
- Apply vendor-supplied security patches immediately.
- Validate secure deserialization practices.
- Monitor for exploitation attempts.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-77645.
| URL | Resource |
|---|---|
| https://www.ptc.com/en/support/article/CS474826 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-77645 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-77645
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-77645 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-77645 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 0b655efc-079c-4cb9-9e8d-164871239f4e
Aug. 20, 2026
Action Type Old Value New Value Added 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'}] 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. Added CVSS V4.0 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 Added CWE CWE-20 Added CWE CWE-502 Added Reference https://www.ptc.com/en/support/article/CS474826