CVE-2026-18607: Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow
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 HTTPCOOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-18607?
CVE-2026-18607 has a severity rating of high, with a score of 8.8.
What types of devices are affected by CVE-2026-18607?
CVE-2026-18607 affects various Wavlink models including WN529, WN530, WN531, WN535, WN536, WN551, WN557, and NU516.
What is the potential impact of CVE-2026-18607?
The vulnerability in CVE-2026-18607 could lead to a stack-based buffer overflow, which may allow for unauthorized code execution.
How can I mitigate the risk posed by CVE-2026-18607?
To address CVE-2026-18607, it's critical to update the affected Wavlink devices to the latest firmware version that resolves the issue.
What component is exploited in CVE-2026-18607?
CVE-2026-18607 exploits the strcpy function within the upload.cgi component of lighttpd.