{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-86510", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-09-07T18:44:07.199Z", "datePublished": "2026-09-08T01:15:08.964Z", "dateUpdated": "2026-09-08T16:04:19.156Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-09-08T01:15:08.964Z" }, "title": "D-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds write", "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "Out-of-bounds Write" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption" } ] } ], "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" ] } ], "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." } ], "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" } } ], "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" } ], "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" ] } ], "x_generator": [ "VulDB PVTS v202609" ] }, "adp": [ { "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" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T16:04:19.156Z" } } ] } }