Unquoted Service Path Vulnerability in Winstep Xtreme Service by Winstep
CVE-2020-37253

8.5HIGH

Key Information:

Vendor

Winstep

Status
Vendor
CVE Published:
19 June 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2020-37253?

The Winstep Xtreme Service version 18.06.0096 is susceptible to an unquoted service path vulnerability. This issue allows local attackers to escalate privileges by placing malicious executables in the Program Files directory. When the Winstep Xtreme Service starts, it may inadvertently execute these malicious files with LocalSystem privileges, potentially compromising the system's security.

Affected Version(s)

Winstep 18.06.0096

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.