{"id":"CVE-2026-86510","aliases":["EUVD-2026-72609","GHSA-435m-cghg-23gf"],"status":"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.","severity":{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00841,"percentile":0.58372,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2026-09-08T01:15:08Z","modified":"2026-09-08T17:18:39Z","products":[{"vendor":"d-link","product":"dir-822a"}],"references":[{"url":"https://vuldb.com/vuln/399663","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/399663/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-86510","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/906300","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"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86510"},{"url":"https://www.dlink.com"},{"url":"https://github.com/advisories/GHSA-435m-cghg-23gf"}],"sources":{"cve":[{"id":"CVE-2026-86510","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.","status":"published","published":"2026-09-08T01:15:08.964Z","modified":"2026-09-08T16:04:19.156Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna"},{"version":"3.1","score":9.9,"vector":"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","level":"critical","assessor":"cna"},{"version":"3.0","score":9.9,"vector":"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","level":"critical","assessor":"cna"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-787","CWE-119"],"updated_at":"2026-11-02T13:49:31.546614Z"}],"euvd":[{"id":"EUVD-2026-72609","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.","status":"published","published":"2026-09-08T01:15:08Z","modified":"2026-09-08T16:04:19Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical"}],"updated_at":"2026-11-02T17:28:28.997972Z"}],"ghsa":[{"id":"GHSA-435m-cghg-23gf","title":"A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function...","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.","status":"published","published":"2026-09-08T03:31:14Z","modified":"2026-09-08T03:31:21Z","cvss":[{"version":"4.0","score":8.6,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:11:27.823827Z"}],"nvd":[{"id":"CVE-2026-86510","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.","status":"published","published":"2026-09-08T02:17:28.357Z","modified":"2026-09-08T17:18:39.887Z","cvss":[{"version":"4.0","score":8.6,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}