CVE-2026-4163

CRITICAL 9.8

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

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	wavlink
Product	wl-wn579a3
Published	Mar 14, 2026
Last Updated	Mar 17, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-WN579A3

220323

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 LtzHuster (VulDB User)