{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19823","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-14T05:30:19.659Z","datePublished":"2026-08-14T12:15:10.480Z","dateUpdated":"2026-08-18T13:39:11.186Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-14T12:15:10.480Z"},"title":"Tenda W20E QoS Rule Deletion delQos formQOSRuleDel 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(1068_1546_841)_CN_TDC","status":"affected"}],"cpes":["cpe:2.3:o:tenda:w20e_firmware:*:*:*:*:*:*:*:*"],"modules":["QoS Rule Deletion"]}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. Impacted is the function formQOSRuleDel of the file /goform/delQos of the component QoS Rule Deletion. Performing a manipulation of the argument qosIndex results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks."}],"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":"2026-08-14T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-14T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-14T07:35:34.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"paxiot (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/389956","name":"VDB-389956 | Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/389956/cti","name":"VDB-389956 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-19823","name":"CVE-2026-19823 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/869021","name":"Submit #869021 | Tenda W20E US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC.bin Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/paueger/mycve/blob/main/Tenda_W20E/4.md","tags":["exploit"]},{"url":"https://www.tenda.com.cn/","tags":["product"]}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T13:29:56.831495Z","id":"CVE-2026-19823","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":"2026-08-18T13:39:11.186Z"}}]}}