RCE in Iptime A1
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.038 · change: +0.004
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- iptime.com/iptime/ (Vendor Advisory)
- docs.google.com/spreadsheets/d/1kryOFltCmnPJvDTpIrudgryt79uI4PWchuQ8-Gak24c/edit (Third Party Advisory)
- github.com/0x0xxxx/CVE/blob/main/CVE-2025-55423/README.md (Exploit, Third Party Advisory)
- github.com/0x0xxxx/CVE/blob/main/CVE-2025-55423/assets/affected_products_cve_fo… (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-55423?
- CVE-2025-55423 is a critical-severity vulnerability in Iptime A1, classified under Code Injection. CVSS score: 9.8/10. Published 2026-01-20.
- How severe is CVE-2025-55423?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-55423 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.