{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86509","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-07T18:42:22.174Z","datePublished":"2026-09-08T00:45:14.915Z","dateUpdated":"2026-09-11T20:34:46.652Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-08T00:45:14.915Z"},"title":"D-Link DIR-895L udhcpcd serverpacket.c sendACK 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":"D-Link","product":"DIR-895L","versions":[{"version":"A1_102b07","status":"affected"}],"cpes":["cpe:2.3:h:d-link:dir-895l:*:*:*:*:*:*:*:*"],"modules":["udhcpcd"]}],"descriptions":[{"lang":"en","value":"A flaw has been found in D-Link DIR-895L A1_102b07. This impacts the function sendOffer/sendACK of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack can only be done within the local network. The exploit has been published and may be used."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":9.4,"vectorString":"CVSS:4.0/AV:A/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":9.6,"vectorString":"CVSS:3.1/AV:A/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":9.6,"vectorString":"CVSS:3.0/AV:A/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":8.3,"vectorString":"AV:A/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-09-07T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-07T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-07T20:47:31.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"tian (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/399662","name":"VDB-399662 | D-Link DIR-895L udhcpcd serverpacket.c sendACK stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/399662/cti","name":"VDB-399662 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-86509","name":"CVE-2026-86509 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/906298","name":"Submit #906298 | D-Link DIR895LA1_102b07 A1_102b07 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0","tags":["exploit"]},{"url":"https://www.dlink.com/","tags":["product"]}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-11T20:15:41.749149Z","id":"CVE-2026-86509","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":"2026-09-11T20:34:46.652Z"}}]}}