CVE-2020-37253

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.

CVSS v4.0

8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.16% chance of exploitation in the next 30 days, 5th percentile

Published

2026-06-19

Updated

2026-06-22

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/49004

References

• CVE Record
• NVD entry

Related

• CVE-2020-37252
• CVE-2020-37254
• CVE-2020-37251
• CVE-2020-37255
• CVE-2020-37250
• CVE-2020-37268