CVE-2025-66264

Unquoted Service path in UPSilon2000V6.0 SYSTEM privilege service

Published Nov 26, 2025 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Description
The CMService.exe service runs with SYSTEM privileges and contains an unquoted service path. This allows a local attacker with write privileges to the filesystem to insert a malicious executable in the path, leading to privilege escalation.

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
First Time appeared Megatec
Megatec upsilon2000
Vendors & Products Megatec
Megatec upsilon2000
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Unquoted Service path in AutoStart SYSTEM privileged service Unquoted Service path in UPSilon2000V6.0 SYSTEM privilege service
Type Values Removed Values Added
Description The CMService.exe service runs with SYSTEM privileges and contains an unquoted service path. This allows a local attacker with write privileges to the filesystem to insert a malicious executable in the path, leading to privilege escalation.
Title Unquoted Service path in AutoStart SYSTEM privileged service
Weaknesses CWE-428
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Gridware
Published
Updated
Nov 26, 2025, 4:09 PM
Reserved
Nov 26, 2025, 12:21 AM
Status
Deferred
Published
Nov 26, 2025, 1:16 AM
Modified
Oct 18, 2026, 8:10 PM