{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18607","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-03T07:17:39.882Z","datePublished":"2026-08-03T16:45:09.268Z","dateUpdated":"2026-08-03T20:23:24.093Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-03T16:45:09.268Z"},"title":"Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-121","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-119","lang":"en","description":"Memory Corruption"}]}],"affected":[{"vendor":"Wavlink","product":"WN572","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn572:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN570H","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn570h:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN573","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn573:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN529","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN530","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN531","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN535","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"etc. WN529","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:etc._wn529:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN530","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn530:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN531","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn531:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN535","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn535:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN536","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn536:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN551","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn551:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"WN557","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:wn557:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]},{"vendor":"Wavlink","product":"NU516","versions":[{"version":"20260609","status":"affected"}],"cpes":["cpe:2.3:a:wavlink:nu516:*:*:*:*:*:*:*:*"],"modules":["lighttpd"]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":8.7,"vectorString":"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","baseSeverity":"HIGH"}},{"cvssV3_1":{"version":"3.1","baseScore":8.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":8.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-08-03T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-03T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-03T09:22:45.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"0xcc12138 (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/385530","name":"VDB-385530 | Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/385530/cti","name":"VDB-385530 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-18607","name":"CVE-2026-18607 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/852637","name":"Submit #852637 | WAVLINK Multiple Router Series (WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc.) WN529, WN530, WN531, WN535, WN536, WN551, WN557, NU516,and so on Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/0xcc12138/WAVLINK-vul","tags":["exploit"]}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T20:22:57.235846Z","id":"CVE-2026-18607","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-03T20:23:24.093Z"}}]}}