WAVLINK WL-WN579A3-A 2026-03-10-94f93d4 Initial Setup Wizard /cgi-bin/adm.cgi set_wzdgwMesh wlan_ssid os command injection

Summaryinfo

A vulnerability labeled as very critical has been found in WAVLINK WL-WN579A3-A 2026-03-10-94f93d4. This affects the function set_wzdgwMesh of the file /cgi-bin/adm.cgi of the component Initial Setup Wizard. The manipulation of the argument wlan_ssid results in os command injection. This vulnerability was named CVE-2026-120195. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability was found in WAVLINK WL-WN579A3-A 2026-03-10-94f93d4. It has been classified as very critical. Affected is the function set_wzdgwMesh of the file /cgi-bin/adm.cgi of the component Initial Setup Wizard. The manipulation of the argument wlan_ssid with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-120195. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/31/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• WAVLINK

Name

• WL-WN579A3-A

Version

• 2026-03-10-94f93d4

License

• commercial

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Accepted

• Submit #914922: WAVLINK WL-WN579A3-A（Router，MT7628） WINSTAR_WN579A3-A-2026-03-10-94f93d4 CWE-78 (by hackerpipi)

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