CVE-2026-89009 WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the syncserver daemon on TCP port 13136. The daemon, which runs...

CVE-2026-89009 WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the syncserver daemon on TCP port 13136. The daemon, which runs...

CVE-2026-89009

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 are affected by an unauthenticated arbitrary file write vulnerability in the sync_server daemon listening on TCP port 13136 . The daemon runs as root without authentication and accepts a 100-byte filename field in its pro...

EUVD-2026-76129

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the syncserver daemon on TCP port 13136. The daemon, which runs...

CVE-2026-89010: Improper Neutralization of Special Elements used in an OS Command

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to the syncserver daemon on TCP port 13136. The daemon...

PT-2026-89893

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1 V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the sync server daemon on TCP port 13136. The daemon, which ru...

PT-2026-89894

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1 V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to the sync server daemon on TCP port 13136. The daemon...

CVE-2026-89009: Absolute Path Traversal

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the syncserver daemon on TCP port 13136. The daemon, which runs...

CVE-2026-74843

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

CVE-2026-74843 Wavlink WN531P3/WN535M1 Export Pingortrace CGI export_pingortrace.cgi strcpy stack-based overflow

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

CVE-2026-74843

Wavlink WN531P3 and WN535M1 routers (firmware V250922) are vulnerable to a remote stack-based buffer overflow in the strcpy call of /etc/lighttpd/www/cgi-bin/export_pingortace.cgi, triggered by manipulating the HTTP_COOKIE argument. CVSS 10.0 (critical); a proof-of-concept exploit is publicly ava...

EUVD-2026-60119

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

CVE-2026-74843

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

CVE-2026-74843 Wavlink WN531P3/WN535M1 Export Pingortrace CGI export_pingortrace.cgi strcpy stack-based overflow

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

PT-2026-76602

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/export pingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTP COOKIE can lead to...

CVE-2026-74843: Stack-based Buffer Overflow

A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/exportpingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTPCOOKIE can lead to...

wavlink-sync_server-rce

WAVLINK syncserver — Unauthenticated Remote Root Code Execu...

CVE-2026-18607

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 o...

CVE-2026-18607

The CVE-2026-18607 affects Wavlink devices including WN572, WN570H, WN573, WN529, WN530, WN531, WN535, WN536, WN551, WN557, and NU516 (firmware up to 20260609). The vulnerability targets the strcpy function in lighttpd’s file upload.cgi, where manipulating the HTTP_COOKIE argument triggers a stac...

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 o...