CVE-2026-8191: OS Command Injection in Wavlink NU516U1
CVE-2026-8191 is an OS command injection vulnerability in the Wavlink NU516U1 device, specifically in the wifi_region function of /cgi-bin/adm. cgi. Manipulating the skiplist1 or skiplist2 arguments can lead to remote command execution. The vulnerability affects firmware version M16U1_V240425. The exploit code is publicly available, but no known exploits in the wild have been reported. The CVSS score is 5. 3, indicating a medium severity level. No official patch or remediation guidance has been provided by the vendor yet.
AI Analysis
Technical Summary
This vulnerability allows an attacker to remotely execute OS commands on the Wavlink NU516U1 device by manipulating parameters (skiplist1/skiplist2) in the wifi_region function within /cgi-bin/adm.cgi. The affected firmware version is M16U1_V240425. The vulnerability is classified as OS command injection, which can lead to unauthorized command execution with limited privileges. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and low to limited impact on confidentiality, integrity, and availability. The vendor has been contacted but no patch or official remediation has been disclosed.
Potential Impact
Successful exploitation can lead to remote OS command execution on the affected device, potentially allowing an attacker to execute arbitrary commands with the privileges of the affected service. This could compromise device integrity and availability. However, the impact is rated medium due to limited privileges and low impact on confidentiality and availability as per the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting network access to the device's management interface to trusted hosts only and monitor for unusual activity. Avoid exposing the device's administrative CGI interface to untrusted networks. Follow vendor communications for updates on patches or official mitigations.
CVE-2026-8191: OS Command Injection in Wavlink NU516U1
Description
CVE-2026-8191 is an OS command injection vulnerability in the Wavlink NU516U1 device, specifically in the wifi_region function of /cgi-bin/adm. cgi. Manipulating the skiplist1 or skiplist2 arguments can lead to remote command execution. The vulnerability affects firmware version M16U1_V240425. The exploit code is publicly available, but no known exploits in the wild have been reported. The CVSS score is 5. 3, indicating a medium severity level. No official patch or remediation guidance has been provided by the vendor yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability allows an attacker to remotely execute OS commands on the Wavlink NU516U1 device by manipulating parameters (skiplist1/skiplist2) in the wifi_region function within /cgi-bin/adm.cgi. The affected firmware version is M16U1_V240425. The vulnerability is classified as OS command injection, which can lead to unauthorized command execution with limited privileges. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and low to limited impact on confidentiality, integrity, and availability. The vendor has been contacted but no patch or official remediation has been disclosed.
Potential Impact
Successful exploitation can lead to remote OS command execution on the affected device, potentially allowing an attacker to execute arbitrary commands with the privileges of the affected service. This could compromise device integrity and availability. However, the impact is rated medium due to limited privileges and low impact on confidentiality and availability as per the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting network access to the device's management interface to trusted hosts only and monitor for unusual activity. Avoid exposing the device's administrative CGI interface to untrusted networks. Follow vendor communications for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-08T19:52:11.621Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ffe1afcbff5d8610eac9d8
Added to database: 5/10/2026, 1:38:55 AM
Last enriched: 5/10/2026, 1:39:04 AM
Last updated: 5/10/2026, 7:43:24 AM
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.