B-Link BL-AC2100 up to 1.0.3 Web Management Interface set_delshrpath_cfg delshrpath Type stack-based overflow
Summary
A vulnerability was found in B-Link BL-AC2100 up to 1.0.3. It has been rated as critical. This affects the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. This manipulation of the argument Type causes stack-based overflow.
The identification of this vulnerability is CVE-2025-10773. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability has been found in B-Link BL-AC2100 up to 1.0.3 and classified as critical. Affected by this vulnerability is the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. The manipulation of the argument type with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.
The advisory is shared at github.com. This vulnerability is known as CVE-2025-10773. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.
It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at CNNVD (CNNVD-202509-3626) and EUVD (EUVD-2025-30388). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.4
VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.8
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
09/21/2025 Advisory disclosed09/21/2025 VulDB entry created
09/26/2025 VulDB entry last update
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2025-10773 (🔒)
GCVE (CVE): GCVE-0-2025-10773
GCVE (VulDB): GCVE-100-325129
EUVD: 🔒
CNNVD: CNNVD-202509-3626 - LB-LINK BL-AC2100 安全漏洞
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 09/21/2025 10:31Updated: 09/26/2025 01:24
Changes: 09/21/2025 10:31 (58), 09/22/2025 05:33 (1), 09/23/2025 19:12 (6), 09/26/2025 01:24 (31)
Complete: 🔍
Submitter: MaximDeVere
Cache ID: 216::103
Submit
Accepted
- Submit #649901: LB-LINK AC2100 V1.0.3 Stack-based Buffer Overflow (by MaximDeVere)
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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