{"id":"CVE-2026-86297","state":"PUBLISHED","title":"D-Link DIR-605 L2TP Control Message tunnel.c tunnel_set_params off-by-one","description":"A vulnerability was identified in D-Link DIR-605 B1v202WWB03. This issue affects the function tunnel_set_params of the file progs.gpl/pppd.alpha/l2tp/tunnel.c of the component L2TP Control Message Parser. Such manipulation of the argument peer_hostname  leads to off-by-one. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit is publicly available and might be used.","publishedAt":"2026-09-07T10:45:26.431Z","updatedAt":"2026-09-09T14:22:51.103Z","severity":{"score":9.2,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["D-Link DIR-605"],"affected":[{"vendor":"D-Link","product":"DIR-605","versions":[{"version":"B1v202WWB03","status":"affected"}],"cpes":["cpe:2.3:h:d-link:dir-605:*:*:*:*:*:*:*:*"],"modules":["L2TP Control Message Parser"]}],"references":["https://vuldb.com/vuln/399459","https://vuldb.com/vuln/399459/cti","https://vuldb.com/cve/CVE-2026-86297","https://vuldb.com/submit/906299","https://tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a809ba163f988c15fc1b7","https://www.dlink.com/"],"weaknesses":["CWE-193","CWE-189"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86297.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86297","state":"PUBLISHED","datePublished":"2026-09-07T10:45:26.431Z","dateUpdated":"2026-09-09T14:22:51.103Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-06T16:18:00.386Z"},"containers":{"cna":{"title":"D-Link DIR-605 L2TP Control Message tunnel.c tunnel_set_params off-by-one","descriptions":[{"lang":"en","value":"A vulnerability was identified in D-Link DIR-605 B1v202WWB03. This issue affects the function tunnel_set_params of the file progs.gpl/pppd.alpha/l2tp/tunnel.c of the component L2TP Control Message Parser. Such manipulation of the argument peer_hostname  leads to off-by-one. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit is publicly available and might be used."}],"affected":[{"vendor":"D-Link","product":"DIR-605","versions":[{"version":"B1v202WWB03","status":"affected"}],"cpes":["cpe:2.3:h:d-link:dir-605:*:*:*:*:*:*:*:*"],"modules":["L2TP Control Message Parser"]}],"references":[{"url":"https://vuldb.com/vuln/399459","name":"VDB-399459 | D-Link DIR-605 L2TP Control Message tunnel.c tunnel_set_params off-by-one","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/399459/cti","name":"VDB-399459 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-86297","name":"CVE-2026-86297 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/906299","name":"Submit #906299 | D-Link DIR605 B1v202WWB03 B1v202WWB03 Out-of-bounds Write","tags":["third-party-advisory"]},{"url":"https://tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a809ba163f988c15fc1b7","tags":["exploit"]},{"url":"https://www.dlink.com/","tags":["broken-link","product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":9.2,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":8.1,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":8.1,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":7.6,"vectorString":"AV:N/AC:H/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-193","type":"CWE","lang":"en","description":"Off-by-One"}]},{"descriptions":[{"cweId":"CWE-189","type":"CWE","lang":"en","description":"Numeric Error"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-09-07T10:45:26.431Z"},"timeline":[{"time":"2026-09-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-06T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-06T18:23:04.000Z","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":"2026-09-09T14:22:33.709847Z","id":"CVE-2026-86297","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":"2026-09-09T14:22:51.103Z"}}]}}}