CVE-2026-4861

Wavlink WL-NU516U1 nas.cgi ftext stack-based overflow

CVSS 8.7 HIGHEPSS 0.9%CWE-119 CWE-121

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.7EPSS 0.9%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 mar 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Produtos afetados

Wavlink · WL-NU516U1

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Referências

https://github.com/Wlz1112/WAVLINK-NU516U1-V260227/blob/main/Content-Length.md https://vuldb.com/?ctiid.353192 https://vuldb.com/?id.353192 https://vuldb.com/?submit.776217