CVE-2025-66265 – Insecure permissions in configuration directory (C:\usr)

The following table lists the changes that have been made to the
CVE-2025-66265 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by b7efe717-a805-47cf-8e9a-921fca0ce0ce

    Nov. 26, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/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
    Added CWE CWE-269
    Added Reference https://www.megatec.com.tw/software-download/
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