{"id":"CVE-2026-3661","state":"PUBLISHED","title":"Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection","description":"A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.","publishedAt":"2026-03-07T13:32:07.913Z","updatedAt":"2026-03-11T16:29:34.044Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Wavlink WL-NU516U1"],"affected":[{"vendor":"Wavlink","product":"WL-NU516U1","versions":[{"version":"240425","status":"affected"}],"cpes":["cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/?id.349550","https://vuldb.com/?ctiid.349550","https://vuldb.com/?submit.758227","https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md"],"weaknesses":["CWE-77","CWE-74"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3661.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3661","state":"PUBLISHED","datePublished":"2026-03-07T13:32:07.913Z","dateUpdated":"2026-03-11T16:29:34.044Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-06T20:29:01.605Z"},"containers":{"cna":{"title":"Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection","descriptions":[{"lang":"en","value":"A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure."}],"affected":[{"vendor":"Wavlink","product":"WL-NU516U1","versions":[{"version":"240425","status":"affected"}],"cpes":["cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://vuldb.com/?id.349550","name":"VDB-349550 | Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.349550","name":"VDB-349550 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.758227","name":"Submit #758227 | wavlink WL-NU516U1-A M16U1_V240425 Command Injection","tags":["third-party-advisory"]},{"url":"https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.7,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.7,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5.8,"vectorString":"AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","type":"CWE","lang":"en","description":"Command Injection"}]},{"descriptions":[{"cweId":"CWE-74","type":"CWE","lang":"en","description":"Injection"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-03-07T13:32:07.913Z"},"timeline":[{"time":"2026-03-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-06T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-06T21:34:12.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"allanp0e (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-11T16:23:15.587729Z","id":"CVE-2026-3661","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-11T16:29:34.044Z"}}]}}}