{"id":"CVE-2026-2567","state":"PUBLISHED","title":"Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow","description":"A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.","publishedAt":"2026-02-16T17:32:05.929Z","updatedAt":"2026-02-23T10:13:10.511Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Wavlink WL-NU516U1"],"affected":[{"vendor":"Wavlink","product":"WL-NU516U1","versions":[{"version":"20251208","status":"affected"}],"cpes":["cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/?id.346174","https://vuldb.com/?ctiid.346174","https://vuldb.com/?submit.752016","https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.md"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/2xxx/CVE-2026-2567.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-2567","state":"PUBLISHED","datePublished":"2026-02-16T17:32:05.929Z","dateUpdated":"2026-02-23T10:13:10.511Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-02-15T19:40:10.069Z"},"containers":{"cna":{"title":"Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow","descriptions":[{"lang":"en","value":"A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used."}],"affected":[{"vendor":"Wavlink","product":"WL-NU516U1","versions":[{"version":"20251208","status":"affected"}],"cpes":["cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://vuldb.com/?id.346174","name":"VDB-346174 | Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.346174","name":"VDB-346174 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.752016","name":"Submit #752016 | Wavlink NU516U1  V251208 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.md","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":8.6,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"HIGH"}},{"cvssV3_1":{"version":"3.1","baseScore":7.2,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.2,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":8.3,"vectorString":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","type":"CWE","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-02-23T10:13:10.511Z"},"timeline":[{"time":"2026-02-15T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-02-15T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-02-20T10:46:00.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"haimianbaobao (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-17T14:46:06.303604Z","id":"CVE-2026-2567","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-17T14:46:34.421Z"}}]}}}