ASR Falcon_Linux/Kestrel/Lapwing_Linux prior 1536 pbwork-queue.C denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.9 | $0-$5k | 0.00 |
Summary
A vulnerability was found in ASR Falcon_Linux, Kestrel and Lapwing_Linux. It has been rated as problematic. This affects an unknown part of the file router/phonebook/pbwork-queue.C. This manipulation causes denial of service. This vulnerability appears as CVE-2025-49481. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.
Details
A vulnerability was found in ASR Falcon_Linux, Kestrel and Lapwing_Linux. It has been declared as problematic. Affected by this vulnerability is an unknown function of the file router/phonebook/pbwork-queue.C. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:
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.
It is possible to read the advisory at asrmicro.com. This vulnerability is known as CVE-2025-49481 since 06/05/2025. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
Upgrading to version 1536 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-28311). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.0VulDB Meta Temp Score: 4.9
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CNA Base Score: 5.4
CNA Vector (ASR): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Falcon_Linux/Kestrel/Lapwing_Linux 1536
Timeline
06/05/2025 🔍07/01/2025 🔍
07/01/2025 🔍
12/22/2025 🔍
Sources
Advisory: asrmicro.comStatus: Confirmed
CVE: CVE-2025-49481 (🔍)
GCVE (CVE): GCVE-0-2025-49481
GCVE (VulDB): GCVE-100-314503
EUVD: 🔍
Entry
Created: 07/01/2025 14:46Updated: 12/22/2025 20:20
Changes: 07/01/2025 14:46 (63), 07/03/2025 18:36 (1), 12/22/2025 18:05 (11), 12/22/2025 20:20 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
No comments yet. Languages: en.
Please log in to comment.