CVE-2026-110957 — A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604.¶
Key facts
CVE-2026-110957 is a Critical (10.0) vulnerability: A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604.. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-110957 |
| Severity | Critical (10.0) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-110957/ |
Details¶
English | 한국어
Description¶
A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function sub_12580 of the file api.cgi of the component Login Processing. The manipulation of the argument REMOTE_ADDR leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to fix this issue. You should upgrade the affected component. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-110957 |
| Type | COMMAND_INJECTION |
| CVSS Score | 10.0 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-110957/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-110957
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin
- https://github.com/F-yyjy/cve/blob/main/WN530BE2-A_api-cgi.md
- https://vuldb.com/cve/CVE-2026-110957
- https://vuldb.com/submit/920217
- https://vuldb.com/vuln/420570
- https://vuldb.com/vuln/420570/cti
Generated by PoC Generator on 2026-10-16T05:28:35.581068063
Frequently asked questions¶
What is CVE-2026-110957?¶
CVE-2026-110957 is a Critical (10.0) vulnerability: A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604.. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-110957?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-110957?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.