Vulnerability · Published Aug 20, 2026 · Assigned by PTC
CVE-2026-77646Server Side Request Forgery (SSRF) vulnerability reported in Windchill
High 7.7
In plain English
A high-severity unsafe deserialization in FlexPLM from PTC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 4.0)7.7High
Exploit odds (30 days)0.4%top 61.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PTC | Windchill PDMLink | 11.0 M03011.1 M02011.2.1.012.0.2.012.1.2.013.0.2.013.1.0.013.1.1.0 |
| PTC | FlexPLM | 11.0 M03011.1 M02011.2.1.012.0.0.012.0.2.012.0.3.012.1.2.012.1.3.0 |
Weakness: CWE-502, CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/AU:Y/R:U/V:D/RE:M/U:Red
References
- https://www.ptc.com/en/support/article/CS474826 vendor-advisory, mitigation, permissions-required