{"id":"CVE-2026-18686","state":"PUBLISHED","title":"GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection","description":"A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.","publishedAt":"2026-08-04T00:00:12.184Z","updatedAt":"2026-08-04T15:04:21.037Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["GL.iNet GL-MT3000"],"affected":[{"vendor":"GL.iNet","product":"GL-MT3000","versions":[{"version":"4.4.0","status":"affected"},{"version":"4.4.1","status":"affected"},{"version":"4.4.2","status":"affected"},{"version":"4.4.3","status":"affected"},{"version":"4.4.4","status":"affected"},{"version":"4.4.5","status":"affected"}],"cpes":["cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*"],"modules":["nas-web RPC Wrapper"]}],"references":["https://vuldb.com/vuln/385612","https://vuldb.com/vuln/385612/cti","https://vuldb.com/cve/CVE-2026-18686","https://vuldb.com/submit/856139","https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHARE"],"weaknesses":["CWE-77","CWE-74"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18686.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18686","state":"PUBLISHED","datePublished":"2026-08-04T00:00:12.184Z","dateUpdated":"2026-08-04T15:04:21.037Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-03T15:50:09.485Z"},"containers":{"cna":{"title":"GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection","descriptions":[{"lang":"en","value":"A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability."}],"affected":[{"vendor":"GL.iNet","product":"GL-MT3000","versions":[{"version":"4.4.0","status":"affected"},{"version":"4.4.1","status":"affected"},{"version":"4.4.2","status":"affected"},{"version":"4.4.3","status":"affected"},{"version":"4.4.4","status":"affected"},{"version":"4.4.5","status":"affected"}],"cpes":["cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*"],"modules":["nas-web RPC Wrapper"]}],"references":[{"url":"https://vuldb.com/vuln/385612","name":"VDB-385612 | GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/385612/cti","name":"VDB-385612 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-18686","name":"CVE-2026-18686 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/856139","name":"Submit #856139 | GL.iNet MT3000 4.4.5 Command Injection","tags":["third-party-advisory"]},{"url":"https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHARE","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":9.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV3_0":{"version":"3.0","baseScore":9.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV2_0":{"version":"2.0","baseScore":10,"vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C"}}],"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":"2026-08-04T00:00:12.184Z"},"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":"2026-08-03T17:55:25.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"coconut (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-04T13:27:21.443352Z","id":"CVE-2026-18686","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-04T15:04:21.037Z"}}]}}}