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CriticalVulnerabilityCVE-2026-120195updated 1 Nov 2026, 08:37 UTC

WAVLINK WL-WN579A3-A router lets remote attackers run system commands

Attackers on the network can send a specially crafted setup request to this router and make it run commands they choose. That can let them take control of the device.

Official, 2 sources
SeverityCriticalCVSS 9.3 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Attacker sends requestCrafted wlan_ssid value sent to setup wizard
  2. 2Reaches router remotelyEndpoint /cgi-bin/adm.cgi is reachable over network
  3. 3Input not sanitizedset_wzdgwMesh passes wlan_ssid to OS command
  4. 4Commands execute on deviceInjected OS commands run on the router
  5. ResultAttacker controls the router

What happened

The Initial Setup Wizard function set_wzdgwMesh in /cgi-bin/adm.cgi does not sanitize the wlan_ssid argument, allowing OS command injection that can be triggered remotely. Exploit details have been publicly disclosed.

Why it is dangerous: A successful attacker gains control of the router, which can expose network traffic and connected devices. Anyone using this router with the affected firmware is at risk.

Are you affected?

You are affected if you run WAVLINK WL-WN579A3-A with firmware 2026-03-10-94f93d4.

WAVLINK WL-WN579A3-A, firmware 2026-03-10-94f93d4

What to do

  1. Check whether your router runs firmware 2026-03-10-94f93d4 and look for a vendor update
  2. Restrict access to the router's web admin interface and disable remote management
  3. Replace the device if no fixed firmware is available

Timeline

  1. 1 Nov 2026, 04:18 UTC
    Publicly disclosed
  2. 1 Nov 2026, 04:18 UTC
    Reported by NVD · NVD
  3. 1 Nov 2026, 04:23 UTC
    Picked up by Zero Radar
  4. 1 Nov 2026, 08:37 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-120195 · GHSA-3wx6-ffgj-fwjg
CVSS
9.3 / 10
EPSS
2.1% chance of exploitation within 30 days
Disclosed
1 Nov 2026, 04:18 UTC
On Zero Radar
1 Nov 2026, 04:23 UTC (4 min after disclosure)
Last change
1 Nov 2026, 08:37 UTC

The plain-language parts and the attack diagram were written by an AI model (claude-haiku-5-5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

WAVLINK WL-WN579A3-A router lets remote attackers run system commands · Zero Radar