CVE-2026-13538: Command Injection in Wavlink WL-NU516U1-A
CVE-2026-13538 is a command injection vulnerability in the Wavlink WL-NU516U1-A router, specifically in the POST parameter handler of /cgi-bin/wireless.cgi. Manipulating certain parameters (SSID2G2, SSID5G2, AuthMethod2, WPAPSK12) can lead to remote command injection. The vendor has released a fixed version promptly after being notified.
AI Analysis
Technical Summary
This vulnerability affects the Wavlink WL-NU516U1-A device in the function sub_401D68 within /cgi-bin/wireless.cgi. By manipulating POST parameters related to wireless configuration, an attacker can inject commands remotely. The vulnerability has been publicly disclosed, and the vendor responded quickly by releasing a fixed version. The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low attack complexity, and no user interaction required.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the affected device by injecting malicious input through specific POST parameters. This could lead to unauthorized control or disruption of the device's operation.
Mitigation Recommendations
A fixed version has been released by the vendor. Users should upgrade the affected product to the latest firmware version provided by Wavlink. Patch status is not explicitly confirmed in the advisory, so verify the vendor's official update channels for the fixed version.
CVE-2026-13538: Command Injection in Wavlink WL-NU516U1-A
Description
CVE-2026-13538 is a command injection vulnerability in the Wavlink WL-NU516U1-A router, specifically in the POST parameter handler of /cgi-bin/wireless.cgi. Manipulating certain parameters (SSID2G2, SSID5G2, AuthMethod2, WPAPSK12) can lead to remote command injection. The vendor has released a fixed version promptly after being notified.
CVSS v4.0
Score 5.3medium
Affected software
cpe:2.3:a:wavlink:wl-nu516u1-a:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Wavlink WL-NU516U1-A device in the function sub_401D68 within /cgi-bin/wireless.cgi. By manipulating POST parameters related to wireless configuration, an attacker can inject commands remotely. The vulnerability has been publicly disclosed, and the vendor responded quickly by releasing a fixed version. The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low attack complexity, and no user interaction required.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the affected device by injecting malicious input through specific POST parameters. This could lead to unauthorized control or disruption of the device's operation.
Mitigation Recommendations
A fixed version has been released by the vendor. Users should upgrade the affected product to the latest firmware version provided by Wavlink. Patch status is not explicitly confirmed in the advisory, so verify the vendor's official update channels for the fixed version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-28T10:01:35.649Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4200db27e9c7971948c624
Added to database: 06/29/2026, 05:21:31 UTC
Last enriched: 06/29/2026, 05:36:16 UTC
Last updated: 06/29/2026, 05:45:35 UTC
Views: 3
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