CVE-2025-66266
Last modified
CVE-2025-66266 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. The RupsMon.exe service executable in UPSilon 2000 has insecure permissions, allowing the 'Everyone' group Full Control. A local attacker can replace the executable with a malicious binary to execute code with SYSTEM privileges or simply change the config path of the service to a command; starting and stopping the service to immediately achieve code execution and privilege escalation. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
The RupsMon.exe service executable in UPSilon 2000 has insecure permissions, allowing the 'Everyone' group Full Control. A local attacker can replace the executable with a malicious binary to execute code with SYSTEM privileges or simply change the config path of the service to a command; starting and stopping the service to immediately achieve code execution and privilege escalation
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-66266?
How severe is CVE-2025-66266?
How do I fix CVE-2025-66266?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-66260PostgreSQL SQL Injection (status_sql.php) in DB Electronica …6.5
- CVE-2025-66261Unauthenticated OS Command Injection (restore_settings.php) …9.8
- CVE-2025-66262Arbitrary File Overwrite via Tar Extraction Path Traversal i…9.8
- CVE-2025-66263Unauthenticated Arbitrary File Read via Null Byte Injection …7.5
- CVE-2025-66264The CMService.exe service runs with SYSTEM privileges and co…7.2
- CVE-2025-66265CMService.exe creates the C:\\usr directory and subdirectori…6.9
- CVE-2025-66269The RupsMon and USBMate services in UPSilon 2000 run with SY…7.1
- CVE-2025-6627A vulnerability has been found in TOTOLINK A702R 4.0.0-B2023…8.8
- CVE-2025-66270The KDE Connect protocol 8 before 2025-11-28 does not correl…4.7
- CVE-2025-66271Clone for Windows provided by ELECOM CO.,LTD. registers a Wi…8.4
- CVE-2025-66273A command injection vulnerability has been reported to affec…7.2
- CVE-2025-66274A NULL pointer dereference vulnerability has been reported t…4.9
Are you affected by CVE-2025-66266?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST