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CVE-2026-77646— Server Side Request Forgery (SSRF) vulnerability reported in Windchill

Quick assessment

Affected
PTC Windchill PDMLink
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PTC Windchill PDMLink是美国PTC公司的一款产品生命周期管理软件。 PTC Windchill PDMLink 11.0 M030版本、11.1 M020版本、11.2.1.0版本、12.0.2.0版本、12.1.2.0版本、13.0.2.0版本、13.1.0.0版本、13.1.1.0版本、13.1.2.0版本和13.1.3.0版本，以及PTC FlexPLM 11.0 M030版本、11.1 M020版本、11.2.1.0版本、12.0.0.0版本、12.0.2.0版本、12.0.3

CVSS 7.7 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
PTC FlexPLM 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
… +2 more rows
PTC Windchill PDMLink 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
… +2 more rows
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I. Basic Information for CVE-2026-77646

Vulnerability Information
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Vulnerability Title
Server Side Request Forgery (SSRF) vulnerability reported in Windchill
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
PTC Windchill PDMLink 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PTC Windchill PDMLink是美国PTC公司的一款产品生命周期管理软件。 PTC Windchill PDMLink 11.0 M030版本、11.1 M020版本、11.2.1.0版本、12.0.2.0版本、12.1.2.0版本、13.0.2.0版本、13.1.0.0版本、13.1.1.0版本、13.1.2.0版本和13.1.3.0版本，以及PTC FlexPLM 11.0 M030版本、11.1 M020版本、11.2.1.0版本、12.0.0.0版本、12.0.2.0版本、12.0.3
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PTC Windchill PDMLink 11.0 M030 -
PTC FlexPLM 11.0 M030 -

II. Public POCs for CVE-2026-77646

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III. Intelligence Information for CVE-2026-77646

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News Coverage for CVE-2026-77646 (1)

Same Patch Batch · PTC · 2026-08-20 · 3 CVEs total

CVE-2026-77644 9.3 CRITICAL Critical Bypass Access Control Vulnerability Reported for Windchill Risk and Reliability (
CVE-2026-77645 9.2 CRITICAL Critical Remote Code Execution (RCE) vulnerability reported in Windchill

IV. Related Vulnerabilities

Same product: Windchill PDMLink
Same vendor: PTC
Same weakness: CWE-502

V. Comments for CVE-2026-77646

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