Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4164
- 2026-10-03 Alias added: GHSA-4hx7-4qhw-8hjh
References
More Wavlink vulnerabilities
- TI-2022-02298 WAVLINK WN535K2/WN535K3 nightled.cgi os command injection CVSS 3.1CRITICAL 9.8
- TI-2026-83752 OS command injection in WAVLINK WN551X3-A DNS resolution handler CVSS 4.0CRITICAL 10.0
- TI-2026-83751 WAVLINK WN551X3-A WireGuard CLI Group ioos os command injection CVSS 4.0CRITICAL 10.0
- TI-2026-83668 Stack-based overflow in WAVLINK WN536AX6-A OpenVPN handler CVSS 4.0CRITICAL 10.0
- TI-2026-83667 OS command injection in WAVLINK WN536AX6-A WireGuard handler CVSS 4.0CRITICAL 10.0
- TI-2026-83666 OS command injection in WAVLINK WN536AX6-A openvpn_cli handler CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-4164 · CVE Program
- CVE-2026-4164 · NVD
- FIRST EPSS
- GHSA-4hx7-4qhw-8hjh · GitHub Advisory Database · CC BY 4.0
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