CVE-2026-3715

A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version 20260226 is able to mitigate this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

• CWE-119
• CWE-121

• https://dl.wavlink.com/firmware/RD/WN579X3C_WAVLINK_V20260226_WO_cb3003b2.binBroken Link
• https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_17/README.mdExploit, Third Party Advisory
• https://vuldb.com/?ctiid.349660Permissions Required, VDB Entry
• https://vuldb.com/?id.349660Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.765325Third Party Advisory, VDB Entry

Published

Mar 8, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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