CVE-2020-37253

Winstep 18.06.0096 Unquoted Service Path Privilege Escalation

Published Jun 19, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Winstep
Winstep winstep
Vendors & Products Winstep
Winstep winstep
Type Values Removed Values Added
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.
Title Winstep 18.06.0096 Unquoted Service Path Privilege Escalation
Weaknesses CWE-428
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jun 22, 2026, 5:15 PM
Reserved
Jun 19, 2026, 2:05 PM
Status
Deferred
Published
Jun 19, 2026, 3:16 PM
Modified
Oct 6, 2026, 10:10 PM