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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Wavlink
  • Wl-wn578w2
  • Wl-wn578w2 Firmware

No data.

No data.

References
Link Providers
https://www.spirityenterprise.com/pentest spirity
https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_4/README.md cve-icon cve-icon
https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_5/README.md cve-icon cve-icon
https://vuldb.com/?ctiid.352360 cve-icon cve-icon
https://vuldb.com/?id.352360 cve-icon cve-icon
https://vuldb.com/?submit.774690 cve-icon cve-icon
https://vuldb.com/?submit.774691 cve-icon cve-icon
History

Mon, 23 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 23 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Wavlink wl-wn578w2
Vendors & Products Wavlink wl-wn578w2

Sun, 22 Mar 2026 09:45:00 +0000

Type Values Removed Values Added
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.
Title Wavlink WL-WN578W2 POST Request firewall.cgi command injection
First Time appeared Wavlink
Wavlink wl-wn578w2 Firmware
Weaknesses CWE-74
CWE-77
CPEs cpe:2.3:o:wavlink:wl-wn578w2_firmware:*:*:*:*:*:*:*:*
Vendors & Products Wavlink
Wavlink wl-wn578w2 Firmware
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': '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'}

cvssV3_1

{'score': 6.3, 'vector': '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'}

cvssV4_0

{'score': 5.3, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-23T16:22:35.195Z

Reserved: 2026-03-21T15:23:43.128Z

Link: CVE-2026-4543

cve-icon Vulnrichment

Updated: 2026-03-23T16:22:30.808Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-22T10:16:07.200

Modified: 2026-03-23T14:31:37.267

Link: CVE-2026-4543

cve-icon Redhat

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