{"id":"CVE-2026-82308","title":"A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.","summary":"A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","cwe":["CWE-122"],"vendor":"SonicWall","product":"SonicOS","affected":["SonicOS 7.3.3-7015 and older versions","SonicOS 8.2.2-8015 and older versions"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-06T19:13:27.123905Z"},"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T19:14:12.963Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-82308","references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T19:01:36.621Z","slug":"CVE-2026-82308","body":"## Overview\n\nA pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.\n\n## Affected\n\n- `SonicOS 7.3.3-7015 and older versions`\n- `SonicOS 8.2.2-8015 and older versions`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":235634,"id":"CVE-2026-82308","ts":1793995426395,"field":"cvss","old":null,"new":"7.5"},{"seq":235633,"id":"CVE-2026-82308","ts":1793995426395,"field":"severity","old":"none","new":"high"}]}