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Medium 6.9Published Nov 25, 2025
CVE-2025-66265Insecure permissions in configuration directory (C:\\usr)
Updated under an hour ago ()
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It affects MegaTec Taiwan ClientMate. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.9 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-269
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Gridware
- NVD analysis
- Deferred
- Record last updated
- Nov 26, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.