{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-11523","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-06-07T16:06:42.495Z","datePublished":"2026-06-08T14:45:09.883Z","dateUpdated":"2026-06-08T16:36:03.017Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-06-08T14:45:09.883Z"},"title":"Tenda W20E Web Management PortalAuth formPortalAuth 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":"W20E","versions":[{"version":"15.11.0.6","status":"affected"}],"cpes":["cpe:2.3:o:tenda:w20e_firmware:*:*:*:*:*:*:*:*"],"modules":["Web Management Interface"]}],"descriptions":[{"lang":"en","value":"A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"HIGH"}},{"cvssV3_1":{"version":"3.1","baseScore":8.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":8.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-06-07T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-06-07T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-06-07T18:11:50.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"hacker128 (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/369143","name":"VDB-369143 | Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/369143/cti","name":"VDB-369143 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-11523","name":"CVE-2026-11523 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/836471","name":"Submit #836471 | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formPortalAuth/formPortalAuth.md","tags":["exploit"]},{"url":"https://www.tenda.com.cn/","tags":["product"]}]},"adp":[{"references":[{"url":"https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formPortalAuth/formPortalAuth.md","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-08T16:35:00.338505Z","id":"CVE-2026-11523","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"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":"2026-06-08T16:36:03.017Z"}}]}}