High severity8.8NVD Advisory· Published Mar 26, 2026· Updated Apr 30, 2026
CVE-2026-4861
CVE-2026-4861
Description
A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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Affected products
2- cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v260227:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- github.com/Wlz1112/WAVLINK-NU516U1-V260227/blob/main/Content-Length.mdnvdExploitThird Party Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdPermissions RequiredVDB Entry
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