Vulnerability · Published Nov 26, 2025 · Assigned by Gridware
CVE-2025-66265Insecure permissions in configuration directory (C:\\usr)
Medium 6.9
In plain English
A medium-severity privilege mismanagement 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)6.9Medium
Exploit odds (30 days)0.1%top 98.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
CMService.exe creates the C:\\usr directory and subdirectories with insecure permissions, granting write access to all authenticated users. This allows attackers to replace configuration files (such as snmp.conf) or hijack DLLs to escalate privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MegaTec Taiwan | ClientMate | 6.2.2 |
Weakness: CWE-269 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L