What is CVE-2026-4163?

CVE-2026-4163 is a critical-severity vulnerability in Wavlink Wl-wn579a3, classified under Command Injection. CVSS score: 9.8/10. Published 2026-03-14.

How severe is CVE-2026-4163?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Wavlink Wl-wn579a3

CVE-2026-4163

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. I…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (46.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: 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.

Affected products

Wavlink Wl-wn579a3 — versions 220323

Weakness classification (CWE)

References

VDB-351070 | Wavlink WL-WN579A3 POST Request wireless.cgi GuestWifi command injection (vdb-entry, technical-description)
VDB-351070 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #765327 | Wavlink WL-WN579A3 V220323 Command Injection (third-party-advisory)
Submit #765328 | Wavlink WL-WN579A3 V220323 Command Injection (Duplicate) (third-party-advisory)
github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_9/README.md (related)
github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_10/README.md (exploit)
dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squas… (patch)

Frequently asked questions

What is CVE-2026-4163?: CVE-2026-4163 is a critical-severity vulnerability in Wavlink Wl-wn579a3, classified under Command Injection. CVSS score: 9.8/10. Published 2026-03-14.
How severe is CVE-2026-4163?: Critical severity. CVSS v3 base score is 9.8 out of 10.