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CVE-2026-4163

Wavlink WL-WN579A3 POST Request wireless.cgi GuestWifi command injection

CVSS 9.3 CRITICALEPSS 2.1%CWE-74CWE-77
Vexday Risk Score
48Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.3EPSS 2.1%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
14 Mar 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability was detected in Wavlink WL-WN579A3 220323. This issue affects the function SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Performing a manipulation results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading the affected component is recommended.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Wavlink · WL-WN579A3
public PoCs found — 1
cve_referencegithub.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_10/README.mdunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.binhttps://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_10/README.mdhttps://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_9/README.mdhttps://vuldb.com/?ctiid.351070https://vuldb.com/?id.351070https://vuldb.com/?submit.765327https://vuldb.com/?submit.765328