CVE-2025-55423 Command injection in n/a
Attackers can execute arbitrary OS commands on ipTIME routers via unsanitized input in the upnp_relay function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55423?
CVE-2025-55423 is a critical command injection vulnerability in n/a, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-94
Which versions are affected by CVE-2025-55423?
It affects 163 products.
Products include Iptime A1004 Firmware, Iptime A1004ns Firmware, Iptime A1004v Firmware, Iptime A104 Firmware, Iptime A104ns Firmware, Iptime A104r Firmware and 157 more.
How do I fix CVE-2025-55423?
No fix has been published for CVE-2025-55423 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-55423 being exploited?
There is no known exploitation of CVE-2025-55423 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-495m-v35r-f849.