{"id":"CVE-2026-110958","revision":"3bbb0441cb094a24b3c33ae9ed8dd2de","records":[{"revision":"3bbb0441cb094a24b3c33ae9ed8dd2de","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110958","aliases":[],"title":"Wavlink WN530HG4B api.cgi heap-based overflow","description":"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.\"","state":0,"publishedAt":"2026-10-15T15:30:18.031+00:00","modifiedAt":"2026-10-15T18:34:20.35+00:00","affected":[{"ecosystem":"Vendor product","name":"WN530HG4B","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Wavlink\",\n                    \"product\": \"WN530HG4B\",\n                    \"versions\": [\n                        {\n                            \"version\": \"M30HG4B_V260724\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"2026-09-24-841a51c6d5_tclinux.bin\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:wavlink:wn530hg4b:*:*:*:*:*:*:*:*\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","score":10,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","score":10,"severity":"CRITICAL"},{"system":"CVSS 3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","score":10,"severity":"CRITICAL"},{"system":"CVSS 2.0","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:OF/RC:C","score":10,"severity":null}],"references":["https://vuldb.com/vuln/420571","https://vuldb.com/vuln/420571/cti","https://vuldb.com/cve/CVE-2026-110958","https://vuldb.com/submit/933388","https://drive.google.com/file/d/12OOh8g9YDCbD-Q4cc52J6TH9KuOoD44A/view?usp=drive_link","https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110958","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110958","identifiers":["CVE-2026-110958"]},"retained":false,"historicalAffected":[]}],"coverage":[]}