CVE-2026-120198

WAVLINK WL-WN530BE1-A protocol.csp con_check_read_finish command injection

A vulnerability has been found in WAVLINK WL-WN530BE1-A V251117. Affected is the function con_check_read_finish of the file /protocol.csp. Such manipulation of the argument group_name/IP-FROM leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 10 Critical EPSS 2.1% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn530be1-a

CVE-2026-89010

WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server

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 interpolates attacker-controlled filename input containing shell metacharacters into a shell command string via sprintf() and passes it to system() without sanitization, enabling root-level command execution on the device.

CVSS 4.0 · 9.3 Critical EPSS 3.2% KEV · Not listed

Vendors

Wavlink

Products

Wn535m1 Wn535m3

CVE-2026-89009

WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

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 runs as root and requires no authentication, accepts a 100-byte filename field in its protocol header without path canonicalization, allowing attackers to supply an absolute path and write arbitrary content to overwrite startup scripts or credential stores to achieve persistent system compromise.

CVSS 4.0 · 8.8 High EPSS 1.0% KEV · Not listed

Vendors

Wavlink

Products

Wn535m1 Wn535m3

CVE-2026-113802

Wavlink WL-WN530BE1-A Unauthenticated OS Command Injection in ioos protocol.csp ovpn_file Handler

Wavlink WL-WN530BE1-A firmware through M30BE1_V251117 contains an OS command injection vulnerability in the sub_23B54 function of the ioos binary, which passes the unsanitized file_id parameter of /protocol.csp?opt=ovpn_file requests with type=del to popen(). A remote unauthenticated attacker can send a forged IP-FROM: 127.0.0.1 header to bypass login and execute arbitrary commands as root.

CVSS 4.0 · 9.3 Critical EPSS 3.5% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn530be1-a

CVE-2026-110957

Wavlink WL-WN530BE2-A Login Processing api.cgi sub_12580 os command injection

A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function sub_12580 of the file api.cgi of the component Login Processing. The manipulation of the argument REMOTE_ADDR leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to fix this issue. You should upgrade the affected component. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."

CVSS 4.0 · 10 Critical EPSS 3.1% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn530be2-a

CVE-2026-109108

Wavlink WL-WN530BE1-A uploadVpn.cgi popen os command injection

A security vulnerability has been detected in Wavlink WL-WN530BE1-A 251117. This affects the function popen of the file /cgi-bin/uploadVpn.cgi. Such manipulation of the argument Type leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 9.4 Critical EPSS 1.7% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn530be1-a

CVE-2026-110958

Wavlink WN530HG4B api.cgi heap-based overflow

A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to resolve this issue. The affected component should be upgraded. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."

CVSS 4.0 · 10 Critical EPSS 1.0% KEV · Not listed

Vendors

Wavlink

Products

Wn530hg4b

CVE-2026-109110

Wavlink WL-WN592AX6 wmapd system os command injection

A flaw has been found in Wavlink WL-WN592AX6 250422. This issue affects the function system of the component wmapd Daemon. Executing a manipulation can lead to os command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 10 Critical EPSS 2.0% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn592ax6

CVE-2026-109109

Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow

A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 10 Critical EPSS < 1% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn530be1-a

CVE-2026-109107

Wavlink WL-WN592AX6 upload.cgi main null pointer dereference

A weakness has been identified in Wavlink WL-WN592AX6 250422. Affected by this issue is the function main of the file /cgi-bin/upload.cgi. This manipulation of the argument Cookie causes null pointer dereference. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Wavlink

Products

Wl-wn592ax6

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/export_pingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTP_COOKIE can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.

CVSS 4.0 · 10 Critical EPSS 1.0% KEV · Not listed

Vendors

Wavlink

Products

Wn531p3 Wn535m1

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 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 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Wavlink

Products

Etc. Wn529 Nu516 Wn529 and 9 more

CVE-2026-18587

Wavlink WL-NU516U1 Config Import os command injection

A flaw has been found in Wavlink WL-NU516U1 708c073-mt7628. The impacted element is an unknown function of the component Config Import. Executing a manipulation of the argument Password can lead to os command injection. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. It is advisable 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.

CVSS 4.0 · 7.7 High EPSS 2.0% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware

CVE-2026-18589

Wavlink WL-NU516U1 nas.cgi change_password stack-based overflow

A vulnerability was found in Wavlink WL-NU516U1 708c073-mt7628. This impacts the function change_password of the file nas.cgi. The manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS 4.0 · 9.3 Critical EPSS 1.1% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware

CVE-2026-18590

Wavlink WL-NU516U1 Admin Password adm.cgi set_sys_adm os command injection

A vulnerability was determined in Wavlink WL-NU516U1 708c073-mt7628. Affected is the function set_sys_adm of the file adm.cgi of the component Admin Password Handler. This manipulation causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. 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.

CVSS 4.0 · 5.3 Medium EPSS 1.8% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware

CVE-2026-18588

Wavlink WL-NU516U1 nas.cgi fgets stack-based overflow

A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. 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 · 9.3 Critical EPSS 1.1% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware

CVE-2026-15513

Wavlink WL-NU516U1 adm.cgi wlink_uci_set_value os command injection

A security flaw has been discovered in Wavlink WL-NU516U1 260515. This affects the function wlink_uci_set_value of the file /cgi-bin/adm.cgi. Performing a manipulation of the argument lan_ip results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. 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 · 5.3 Medium EPSS 1.8% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware

CVE-2026-13538

Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_401D68 command injection

A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS 4.0 · 5.3 Medium EPSS 2.2% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1-a

CVE-2026-13539

Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_407504 stack-based overflow

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.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1-a

CVE-2026-8228

Wavlink NU516U1 wireless.cgi advance os command injection

A security vulnerability has been detected in Wavlink NU516U1 240425. Impacted is the function advance of the file /cgi-bin/wireless.cgi. Such manipulation of the argument wlan_conf/Channel/skiplist/ieee_80211h leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 5.3 Medium EPSS 7.8% KEV · Not listed

Vendors

Wavlink

Products

Wl-nu516u1 Wl-nu516u1 Firmware