{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4254","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-03-16T06:16:10.100Z","datePublished":"2026-03-16T17:32:11.090Z","dateUpdated":"2026-03-16T18:29:35.800Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-03-16T17:32:11.090Z"},"title":"Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd 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":"Tenda","product":"AC8","versions":[{"version":"16.03.50.0","status":"affected"},{"version":"16.03.50.1","status":"affected"},{"version":"16.03.50.2","status":"affected"},{"version":"16.03.50.3","status":"affected"},{"version":"16.03.50.4","status":"affected"},{"version":"16.03.50.5","status":"affected"},{"version":"16.03.50.6","status":"affected"},{"version":"16.03.50.7","status":"affected"},{"version":"16.03.50.8","status":"affected"},{"version":"16.03.50.9","status":"affected"},{"version":"16.03.50.10","status":"affected"},{"version":"16.03.50.11","status":"affected"}],"cpes":["cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*"],"modules":["HTTP Endpoint"]}],"descriptions":[{"lang":"en","value":"A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks."}],"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:UR"}}],"timeline":[{"time":"2026-03-16T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-16T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-16T07:21:20.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"DigitalAndrew (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/?id.351212","name":"VDB-351212 | Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.351212","name":"VDB-351212 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.771773","name":"Submit #771773 | Tenda AC8 V5 V16.03.50.11 Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/digitalandrew/tenda_ac8_v5/blob/main/CVE_Report_Tenda_AC8_SysToolChangePwd_BOF.md","tags":["exploit"]},{"url":"https://www.tenda.com.cn/","tags":["product"]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-16T18:29:16.971487Z","id":"CVE-2026-4254","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"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":"2026-03-16T18:29:35.800Z"}}]}}