CVE-2025-49481 Resource leaks in router
Attackers can cause resource leaks in ASR routers, leading to denial of service by exhausting system resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-49481?
CVE-2025-49481 is a medium-severity denial of service vulnerability in ASR Falcon_Linux、Kestrel、Lapwing_Linux, published on 1 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper Resource Shutdown or Release vulnerability in ASR180x 、ASR190x in router modules allows Resource Leak Exposure. This vulnerability is associated with program files router/phonebook/pbwork-queue.C.
This issue affects Falcon_Linux、Kestrel、Lapwing_Linux: before v1536.
Weakness: CWE-404
Which versions are affected by CVE-2025-49481?
It affects 3 products.
Products include Asrmicro Falcon Linux, Asrmicro Kestrel, Asrmicro Lapwing Linux.
How do I fix CVE-2025-49481?
No fix has been published for CVE-2025-49481 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-49481 being exploited?
There is no known exploitation of CVE-2025-49481 in the wild and no public exploit code.
Other vulnerabilities in ASR Falcon_Linux、Kestrel、Lapwing_Linux
Sources
Also known as GHSA-5cvw-vp79-j5wh.