CVE-2026-13539
published 2026-06-29CVE-2026-13539: A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the…
PriorityP268high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.47%
36.9th percentile
A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. Such manipulation of the argument Guest_ssid leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. It is suggested to 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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| wavlink | wl-nu516u1-a | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.07.4HIGHCVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
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GHSA
A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425.
ghsa_unreviewed·2026-06-29
CVE-2026-13539 [HIGH] CWE-119 A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425.
A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. Such manipulation of the argument Guest_ssid leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. It is suggested to 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.
VulDB
Wavlink WL-NU516U1-A M16U1_V240425 POST Parameter /cgi-bin/wireless.cgi sub_407504 Guest_ssid stack-based overflow
vuldb·2026-06-28
CVE-2026-13539 [CRITICAL] Wavlink WL-NU516U1-A M16U1_V240425 POST Parameter /cgi-bin/wireless.cgi sub_407504 Guest_ssid stack-based overflow
A vulnerability was found in Wavlink WL-NU516U1-A M16U1_V240425 and classified as critical. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. Such manipulation of the argument Guest_ssid leads to stack-based buffer overflow.
This vulnerability is documented as CVE-2026-13539. The attack can be executed remotely. Additionally, an exploit exists.
It is suggested to 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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-06-22-5ccde97-mt7628-squashfs-sysupgrade.binhttps://github.com/Svigo-o/Wavlink_vul/tree/main/wavlink-wl-nu516u1-wireless-guestwifi-guestssid-buffer-overflowhttps://vuldb.com/cve/CVE-2026-13539https://vuldb.com/submit/834024https://vuldb.com/vuln/374547https://vuldb.com/vuln/374547/cti
2026-06-29
Published