# CVE-2021-27505

## Summary

- **CVE ID:** CVE-2021-27505
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-548
- **Published:** May 13, 2022
- **Last Modified:** Mar 13, 2026

## Description

mySCADA myPRO versions prior to 8.20.0 does not restrict unauthorized read access to sensitive directory listing information.

## Affected Products

- mySCADA — myPRO (unspecified)

## References

- [CNA](https://www.cisa.gov/uscert/ics/advisories/icsa-21-217-03)
- [CNA](https://www.myscada.org/version-8-20-0-released-security-update)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 43.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._