WAVLINK WL-WN579A3-A Initial Setup Wizard adm.cgi set_wzdgwMesh os command injection
Affects WAVLINK WL-WN579A3-A routers in the initial setup wizard state with the factory default WLAN band D. CVSS scores it 10 (critical), and the checked facts give no vendor rating or fix.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 37/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Default setups
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The WAVLINK WL-WN579A3-A router's Initial Setup Wizard web interface is affected, allowing a remote attacker to inject operating system commands through a crafted wireless network name (SSID) input. Successful exploitation could let an attacker run arbitrary commands on the device, potentially taking control of the router.
Read the original description
A security vulnerability has been detected in WAVLINK WL-WN579A3-A 2026-03-10-94f93d4. The impacted element 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 leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.
What to do
Check every install: default setups are affected.
Workaround: The checked facts give no workaround. The exposure is limited to devices in the initial setup wizard state, so the listed conditions are the only documented trigger.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- WAVLINK WL-WN579A3-A
2026-03-10-94f93d4
Evidence 5
- Advisory
- Advisory
- Advisory
- Advisory
- Exploit
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-120195
What does this mean?
During the initial setup wizard, an unauthenticated attacker can send a crafted request to the adm.cgi set_wzdgwMesh function and run arbitrary operating system commands as root. That gives full control of the router.Source: github.com
Am I affected, and how do I check?
The listed conditions are that the device is in the initial setup wizard state, meaning UserInit is 0 in /etc/config/winstar with Popup set to 1 (fresh out of the box or after a factory reset), and that the WLAN band is the factory default WiFiBand 'D'. Those are the settings to check on the device.Source: github.com
What should I do about it?
The checked facts name no fixed firmware version, so no upgrade target can be given. Check the vendor for a patched firmware release.Source: github.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What if there's no patch?
The checked facts give no workaround. The exposure is limited to devices in the initial setup wizard state, so the listed conditions are the only documented trigger.Source: github.com