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CVE-2026-3715

HIGH

8.8

Description

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/8/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

wavlink:wl-wn579x3-cwavlink:wl-wn579x3-c_firmware

Weaknesses (CWE)

CWE-119CWE-121

References

https://dl.wavlink.com/firmware/RD/WN579X3C_WAVLINK_V20260226_WO_cb3003b2.bin(cna@vuldb.com)

https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_17/README.md(cna@vuldb.com)

https://vuldb.com/?ctiid.349660(cna@vuldb.com)

https://vuldb.com/?id.349660(cna@vuldb.com)

https://vuldb.com/?submit.765325(cna@vuldb.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.