CVE-2026-4543
Wavlink WL-WN578W2 POST Request firewall.cgi command injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Mar 22, 2026
- Updated
- Mar 23, 2026
- Reserved
- Mar 21, 2026
Description
A vulnerability was found in Wavlink WL-WN578W2 221110. The impacted element is an unknown function of the file /cgi-bin/firewall.cgi of the component POST Request Handler. Performing a manipulation of the argument dmz_flag/del_flag results in command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-WN578W2Wavlink |
|
References
- VDB-352360 | Wavlink WL-WN578W2 POST Request firewall.cgi command injectionvdb-entrytechnical-description
- VDB-352360 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #774690 | Wavlink WL-WN578W2 V221110 Command Injectionthird-party-advisory
- Submit #774691 | Wavlink WL-WN578W2 V221110 Command Injection (Duplicate)third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_4/README.mdrelated
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_5/README.mdexploit
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