Buffer overflow in Wavlink Wl-wn579x3-c

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…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (28.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3715?
CVE-2026-3715 is a high-severity vulnerability in Wavlink Wl-wn579x3-c, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-08.
How severe is CVE-2026-3715?
High severity. CVSS v3 base score is 8.8 out of 10.