Critical 9.8Published Mar 14, 2026

CVE-2026-4163Wavlink WL-WN579A3 POST Request wireless.cgi GuestWifi command injection

Updated under an hour ago (Oct 27, 2026, 8:30 AM ET)

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It affects Wavlink WL-WN579A3. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Wavlink WL-WN579A3

Exploited in the last 30 days

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: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Weakness (CWE): CWE-77, CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Mar 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wavlink WL-WN579A3 wavlink:wl-wn579a3_firmware	220323	CNA record

References

References

https://vuldb.com/?id.351070	vdb-entry, technical-description
https://vuldb.com/?ctiid.351070	signature, permissions-required
https://vuldb.com/?submit.765327	third-party-advisory
https://vuldb.com/?submit.765328	third-party-advisory
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_9/README.md	related
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_10/README.md	exploit
https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bin	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.