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CVE-2026-77644— Critical Bypass Access Control Vulnerability Reported for Windchill Risk and Reliability (WRR) Enterprise Edition

Quick assessment

Affected
PTC Windchill Risk and Reliability Enterprise Edition (Formerly Relex)
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 Risk and Reliability (WRR) 企业版中曝出一起关键性的访问控制绕过漏洞。

CVSS 9.3 · Critical EPSS 0.31% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
PTC Windchill Risk and Reliability Enterprise Edition (Formerly Relex) 11.1≤ 13.1 affected
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I. Basic Information for CVE-2026-77644

Vulnerability Information
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Vulnerability Title
Critical Bypass Access Control Vulnerability Reported for Windchill Risk and Reliability (WRR) Enterprise Edition
Source: CVE Program / CVE List V5
Vulnerability Description
A critical bypass access control vulnerability has been reported in PTC Windchill Risk and Reliability (WRR) Enterprise Edition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/RE:M/U:Red
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
PTC Windchill Risk and Reliability Enterprise Edition (Formerly Relex) 11.1 ~ 13.1 -

II. Public POCs for CVE-2026-77644

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III. Intelligence Information for CVE-2026-77644

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Vendor Advisories for CVE-2026-77644 (1)

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

CVE-2026-77645 9.2 CRITICAL Critical Remote Code Execution (RCE) vulnerability reported in Windchill
CVE-2026-77646 7.7 HIGH Server Side Request Forgery (SSRF) vulnerability reported in Windchill

IV. Related Vulnerabilities

Same vendor: PTC
Same weakness: CWE-306

V. Comments for CVE-2026-77644

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