Vulnerability · Published Nov 26, 2025 · Assigned by Gridware
CVE-2025-66264Unquoted Service path in UPSilon2000V6.0 SYSTEM privilege service
High 7.2
In plain English
A high-severity security flaw in ClientMate from MegaTec Taiwan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 4.0)7.2High
Exploit odds (30 days)0.1%top 97.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MegaTec Taiwan | ClientMate | 6.2.2 |
Weakness: CWE-428 · 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