CVE-2025-66265

Published Nov 26, 2025 Modified Apr 15, 2026 CWE-269

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.

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Weakness Type (CWE)

CWE-269 CWE-269

References

Frequently Asked Questions

What is CVE-2025-66265? +
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.
How do I check if I'm vulnerable to CVE-2025-66265? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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