{"id":"CVE-2026-77946","state":"PUBLISHED","title":"TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based overflow","description":"A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function uci_safe_get of the file /cgi-bin/apply_time.cgi of the component NTP Timezone Configuration Handler. Executing a manipulation of the argument system.ntp.server/system.ntp.enable_server/cameo.time.time_zone/cameo.cameo.syslog_server can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.","publishedAt":"2026-08-22T11:00:09.399Z","updatedAt":"2026-08-26T17:48:48.471Z","severity":{"score":10,"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:H/SI:H/SA:H/E:P","source":"VulDB"},"assigner":"VulDB","products":["TRENDnet TEW-821DAP"],"affected":[{"vendor":"TRENDnet","product":"TEW-821DAP","versions":[{"version":"2.2.01b05","status":"affected"}],"cpes":["cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:*"],"modules":["NTP Timezone Configuration Handler"]}],"references":["https://vuldb.com/vuln/394175","https://vuldb.com/vuln/394175/cti","https://vuldb.com/cve/CVE-2026-77946","https://vuldb.com/submit/881252","https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TEW-821DAP_ssi_NTP_Timezone_Config_Stack_Overflow.md"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77946.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77946","state":"PUBLISHED","datePublished":"2026-08-22T11:00:09.399Z","dateUpdated":"2026-08-26T17:48:48.471Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-21T18:42:40.547Z"},"containers":{"cna":{"title":"TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based overflow","descriptions":[{"lang":"en","value":"A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function uci_safe_get of the file /cgi-bin/apply_time.cgi of the component NTP Timezone Configuration Handler. Executing a manipulation of the argument system.ntp.server/system.ntp.enable_server/cameo.time.time_zone/cameo.cameo.syslog_server can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized."}],"affected":[{"vendor":"TRENDnet","product":"TEW-821DAP","versions":[{"version":"2.2.01b05","status":"affected"}],"cpes":["cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:*"],"modules":["NTP Timezone Configuration Handler"]}],"references":[{"url":"https://vuldb.com/vuln/394175","name":"VDB-394175 | TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/394175/cti","name":"VDB-394175 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-77946","name":"CVE-2026-77946 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/881252","name":"Submit #881252 | TRENDnet TEW-821DAP Wireless Access Point v2.2.01b05 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TEW-821DAP_ssi_NTP_Timezone_Config_Stack_Overflow.md","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":10,"vectorString":"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","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":10,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV3_0":{"version":"3.0","baseScore":10,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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: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":"2026-08-22T11:00:09.399Z"},"timeline":[{"time":"2026-08-21T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-21T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-21T20:47:45.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ST4R0002 (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T17:48:38.933905Z","id":"CVE-2026-77946","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":"2026-08-26T17:48:48.471Z"}}]}}}