{"id":"CVE-2026-86510","state":"PUBLISHED","title":"D-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds write","description":"A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function tunnel_set_params of the component L2TP Control Message Parser. Such manipulation leads to out-of-bounds write. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.","publishedAt":"2026-09-08T01:15:08.964Z","updatedAt":"2026-09-08T16:04:19.156Z","severity":{"score":9.4,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","source":"VulDB"},"assigner":"VulDB","products":["D-Link DIR-822A"],"affected":[{"vendor":"D-Link","product":"DIR-822A","versions":[{"version":"A_101","status":"affected"}],"cpes":["cpe:2.3:h:d-link:dir-822a:*:*:*:*:*:*:*:*"],"modules":["L2TP Control Message Parser"]}],"references":["https://vuldb.com/vuln/399663","https://vuldb.com/vuln/399663/cti","https://vuldb.com/cve/CVE-2026-86510","https://vuldb.com/submit/906300","https://tzh00203.notion.site/D-Link-DIR-822A-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a80a7af5fdc1af3d5aa73","https://www.dlink.com/"],"weaknesses":["CWE-787","CWE-119"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86510.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86510","state":"PUBLISHED","datePublished":"2026-09-08T01:15:08.964Z","dateUpdated":"2026-09-08T16:04:19.156Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-07T18:44:07.199Z"},"containers":{"cna":{"title":"D-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds write","descriptions":[{"lang":"en","value":"A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function tunnel_set_params of the component L2TP Control Message Parser. Such manipulation leads to out-of-bounds write. The attack can be launched remotely. The exploit has been disclosed to the public and may be used."}],"affected":[{"vendor":"D-Link","product":"DIR-822A","versions":[{"version":"A_101","status":"affected"}],"cpes":["cpe:2.3:h:d-link:dir-822a:*:*:*:*:*:*:*:*"],"modules":["L2TP Control Message Parser"]}],"references":[{"url":"https://vuldb.com/vuln/399663","name":"VDB-399663 | D-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds write","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/399663/cti","name":"VDB-399663 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-86510","name":"CVE-2026-86510 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/906300","name":"Submit #906300 | D-Link DIR822A_101 A_101 Out-of-bounds Write","tags":["third-party-advisory"]},{"url":"https://tzh00203.notion.site/D-Link-DIR-822A-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a80a7af5fdc1af3d5aa73","tags":["exploit"]},{"url":"https://www.dlink.com/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":9.4,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":9.9,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV3_0":{"version":"3.0","baseScore":9.9,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","type":"CWE","lang":"en","description":"Out-of-bounds Write"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-09-08T01:15:08.964Z"},"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":"2026-09-07T20:49:12.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"tian (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-08T16:04:12.456981Z","id":"CVE-2026-86510","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-08T16:04:19.156Z"}}]}}}