CVE-2025-49481: Resource leaks in router

Published Jul 1, 2025
·
Updated

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 FalconLinux、Kestrel、LapwingLinux: before v1536.

Affected Software

12 affected components
Unknown ASR180x
Unknown ASR190x
Unknown Falcon_Linux<1536
Unknown Kestrel<1536
Unknown Lapwing_Linux<1536
All of the following
Any of the following
Asrmicro Falcon Linux<1536
Asrmicro Kestrel<1536
Asrmicro Lapwing Linux<1536
Any of the following
Asrmicro Asr1803
Asrmicro Asr1806
Asrmicro Asr1901
Asrmicro Asr1903

Event History

Jul 1, 2025
CVE Published
via MITRE·11:20 AM
Data Sourced
via MITRE·11:20 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·12:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-49481?

CVE-2025-49481 is classified as a medium severity vulnerability due to its potential for resource leak exposure.

2

How do I fix CVE-2025-49481?

To fix CVE-2025-49481, update to the latest versions of the affected software: Falcon Linux, Kestrel, and Lapwing Linux, beyond v1536.

3

What routers are affected by CVE-2025-49481?

CVE-2025-49481 affects Cisco ASR1800 Series and ASR1900 Series routers, as well as specific versions of Falcon Linux, Kestrel, and Lapwing Linux.

4

What is the cause of CVE-2025-49481?

CVE-2025-49481 is caused by an improper resource shutdown or release in the router's program files.

5

Can CVE-2025-49481 lead to a denial of service?

Yes, CVE-2025-49481 can potentially lead to a denial of service due to resource leakage.

Contact

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