PT-2026-26974 · Wavlink · Wl-Wn578W2

Ltzhuster + 1 · Published 2026-03-22 · Updated 2026-03-22 · CVE-2026-4543

NVD

CVSS v2.0

6.5

Medium

AV:N/AC:L/Au:S/C:P/I:P/A:P

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.

Exploit

Fix

Special Elements Injection

Command Injection

Weakness Enumeration

CWE-74

CWE-77

Related Identifiers

CVE-2026-4543

Affected Products

Wl-Wn578W2

References · 7

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_5/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4543 · Security Note
• https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_4/README.md · Note
• https://vuldb.com/?submit.774690 · Note
• https://vuldb.com/?ctiid.352360 · Note
• https://vuldb.com/?submit.774691 · Note
• https://vuldb.com/?id.352360 · Note