CVE-2026-77646
Server Side Request Forgery (SSRF) vulnerability reported in Windchill
Description
A Server-Side Request Forgery (SSRF) vulnerability has been reported in PTC Windchill PDMLink 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 | HIGH | 0b655efc-079c-4cb9-9e8d-164871239f4e | ||||
| CVSS 4.0 | HIGH | 0b655efc-079c-4cb9-9e8d-164871239f4e |
Solution
- Apply PTC security updates for Windchill PDMLink.
- Apply PTC security updates for FlexPLM.
- Validate deserialization handling for untrusted data.
- Restrict external network access where possible.
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-2026-77646.
| 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-2026-77646 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-2026-77646
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-2026-77646 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-77646 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 Server-Side Request Forgery (SSRF) vulnerability has been reported in PTC Windchill PDMLink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/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:D/RE:M/U:Red Added CWE CWE-918 Added CWE CWE-502 Added Reference https://www.ptc.com/en/support/article/CS474826