CVE-2026-18607: high-severity vulnerability in Wavlink NU516
Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.8%
A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of the argument HTTP_COOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
CVSS: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
Affected products
Wavlink · etc. WN529Wavlink · NU516Wavlink · WN529Wavlink · WN530Wavlink · WN531Wavlink · WN535Wavlink · WN536Wavlink · WN551Wavlink · WN557Wavlink · WN570HWavlink · WN572Wavlink · WN573public PoCs found — 1
cve_referencegithub.com/0xcc12138/WAVLINK-vulunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.