CVE-2026-3715
A vulnerability was found in Wavlink WL-WN579X3-C 231124.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 7.4 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.66% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-121
- Affected
- wavlink/wl-wn579x3-c firmware
- Source
- cna@vuldb.com
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.