Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS
CVE-2026-124580 Overview
A vulnerability was found in Chengdu Feiyuxing Technology VW2100 and VEC10GP 1.0 B-MB3W202-210825-r11775. This impacts the function handle_wechat_cn_wifi of the file var/html/webserver of the component Weixin Auth Endpoint. The manipulation of the argument extend results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Critical Impact
Affected Products
- Chengdu Feiyuxing Technology VW2100 and VEC10GP: see the vendor advisory for the exact affected versions
Discovery Timeline
- 2026-11-09: CVE-2026-124580 published to the National Vulnerability Database by cna@vuldb.com
- 2026-11-09: last updated in the NVD database
Technical Details for CVE-2026-124580
Vulnerability Analysis
CVE-2026-124580 is a Command Injection weakness (CWE-77: Command Injection, CWE-78: OS Command Injection) in Chengdu Feiyuxing Technology VW2100 and VEC10GP. Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Untrusted input ends up inside a system command.
With a CVSS base score of 9.3, apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Root Cause
The weakness is classified as CWE-77: Command Injection, CWE-78: OS Command Injection. Untrusted input ends up inside a system command.
Attack Vector
Based on the CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Attack complexity is low complexity.
No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Detection Methods for CVE-2026-124580
Detection Strategies
- Inventory every instance of Chengdu Feiyuxing Technology VW2100 and VEC10GP and compare the running version with the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Run an authenticated vulnerability scan once your scanner ships a check for this CVE.
Monitoring Recommendations
- Forward Chengdu Feiyuxing Technology VW2100 and VEC10GP application, access and audit logs to your SIEM for retrospective hunting.
- Alert on new processes, configuration changes or outbound connections from the affected service.
- Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.
How to Mitigate CVE-2026-124580
Immediate Actions Required
- Apply the fixed version of Chengdu Feiyuxing Technology VW2100 and VEC10GP named in the vendor advisory.
- Prioritize internet facing and business critical instances first.
- Rescan after the change to confirm the exposure is closed.
Patch Information
Use the fixed version listed in the vendor advisory for Chengdu Feiyuxing Technology VW2100 and VEC10GP.
Workarounds
- If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.
CWE References
- CWE-77: Command Injection More CVEs with this weakness
- CWE-78: OS Command Injection More CVEs with this weakness
Technical References
This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.
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