Critical severity · published Mar 15, 2026
CVE-2026-4164
Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection
9.8
CVSS
2.1%
EPSS
No
On KEV
Description
A flaw has been found in Wavlink WL-WN578W2 221110. Impacted is the function Delete_Mac_list/SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Executing a manipulation can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. It is recommended to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WL
WL-WN578W2 · Wavlink
221110 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4164
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4164
dl.wavlink.com
https://dl.wavlink.com/firmware/RD/WINSTAR_WN578W2-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bin
github.com
https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_1/README.md
github.com
https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_2/README.md
vuldb.com
https://vuldb.com/?ctiid.351071
vuldb.com
https://vuldb.com/?id.351071
vuldb.com
https://vuldb.com/?submit.768292
More from WL-WN578W2
9.8
CVE-2025-10359
Wavlink WL-WN578W2 wireless.cgi sub_404DBC os command injection
9.8
CVE-2025-10358
Wavlink WL-WN578W2 wireless.cgi sub_404850 os command injection
9.8
CVE-2025-10324
Wavlink WL-WN578W2 firewall.cgi sub_401C5C command injection
9.8
CVE-2025-10323
Wavlink WL-WN578W2 wizard_rep.shtml sub_409184 command injection
8.8
CVE-2025-10325
Wavlink WL-WN578W2 login.cgi sub_401BA4 command injection