CVE-2025-55423
CVSS v3
9.8
CRITICAL
EPSS Score
3.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A command injection vulnerability exists in the upnp_relay() function in multiple ipTIME router models because the controlURL value used to pass port-forwarding information to an upper router is passed to system() without proper validation or sanitization, allowing OS command injection.
Technical details
- Published
- 2026-01-20
- Last Modified
- 2026-01-30
Frequently asked questions
What is CVE-2025-55423?
A command injection vulnerability exists in the upnp_relay() function in multiple ipTIME router models because the controlURL value used to pass port-forwarding information to an upper router is passed to system() without proper validation or sanitization, allowing OS command injection.
Is CVE-2025-55423 actively exploited?
Active exploitation of CVE-2025-55423 has not been confirmed. Its EPSS score was 3.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-55423?
CVE-2025-55423 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2025-55423 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2025 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).
- CVE-2025-53770KEVMicrosoft SharePoint Server Remote Code Execution Vulnerability
- CVE-2025-49704KEVMicrosoft SharePoint Remote Code Execution Vulnerability
- CVE-2025-3248KEV
- CVE-2025-22457KEV
- CVE-2025-59287KEV
- CVE-2025-0282KEV
- CVE-2025-31161KEV
- CVE-2025-5777KEVNetScaler ADC and NetScaler Gateway - Insufficient input validation leading to memory overread