# CVE-2026-77644

## Summary

- **CVE ID:** CVE-2026-77644
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (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)
- **CWE:** CWE-306, CWE-620
- **Published:** Aug 20, 2026
- **Last Modified:** Aug 26, 2026

## Description

A critical bypass access control vulnerability has been reported in PTC Windchill Risk and Reliability (WRR) Enterprise Edition.

## Affected Products

- PTC — Windchill Risk and Reliability Enterprise Edition (Formerly Relex) (11.1)

## References

- [CNA](https://www.ptc.com/en/support/article/CS474818)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.31%
- **EPSS Percentile:** 24.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._