# CVE-2020-37253

## Summary

- **CVE ID:** CVE-2020-37253
- **Severity:** HIGH
- **CVSS Score:** 8.5 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-428
- **Published:** Jun 19, 2026
- **Last Modified:** Jun 22, 2026

## Description

Winstep 18.06.0096 contains an unquoted service path vulnerability in the Winstep Xtreme Service that allows local attackers to escalate privileges. Attackers can place malicious executables in the Program Files directory to be executed with LocalSystem privileges when the service starts.

## Affected Products

- Winstep — Winstep (18.06.0096)

## References

- [CNA](https://www.exploit-db.com/exploits/49004)
- [CNA](https://www.vulncheck.com/advisories/winstep-unquoted-service-path-privilege-escalation)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 5.2

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