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CVE-2026-77645— Critical Remote Code Execution (RCE) 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 和 PTC FlexPLM 中存在一个严重远程代码执行（RCE）漏洞。该漏洞可通过反序列化不受信任的数据进行利用。

CVSS 9.2 · Critical EPSS 0.47% · P39

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-2026-77645

Vulnerability Information
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Vulnerability Title
Critical Remote Code Execution (RCE) vulnerability reported in Windchill
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-77645

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III. Intelligence Information for CVE-2026-77645

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News Coverage for CVE-2026-77645 (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-2026-77646 7.7 HIGH Server Side Request Forgery (SSRF) vulnerability reported in Windchill

IV. Related Vulnerabilities

Same product: Windchill PDMLink
Same vendor: PTC
Same weakness: CWE-20

V. Comments for CVE-2026-77645

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