CVE-2026-13538: Command Injection in Wavlink WL-NU516U1-A
A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
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
A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
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: 08/12/2026, 12:41:08 UTC
Views: 87
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