{"affected":[{"defaultStatus":"unknown","platforms":["Gen7","Gen8"],"product":"SonicOS","source":"CNA: sonicwall","vendor":"SonicWall","versions":[{"status":"affected","version":"7.3.3-7015 and older versions"},{"status":"affected","version":"8.2.2-8015 and older versions"}]}],"cveId":"CVE-2026-77709","cwes":["CWE-122"],"description":"A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS TACACS+ authentication client, which in specific conditions could potentially enable a remote unauthenticated attacker to cause an application level denial of service.","epss":{"date":"2026-11-10","percentile":0.5186,"score":0.00659},"exploits":[],"kev":null,"metrics":[{"score":5.9,"severity":"medium","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":5.9,"severity":"medium","source":"NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794420973636,"publishedAt":1793991993104,"references":[{"source":"CNA: sonicwall","tags":["vendor-advisory"],"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014"},{"source":"PSIRT@sonicwall.com","tags":[],"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014"}],"remediation":[],"revision":"f0451ed1e7d5116154c3c3759c09df23f72a5db81a3a94bf7331f65cdda402c8","sources":[{"modifiedAt":1794420973636,"name":"CNA: sonicwall","retrievedAt":1794424170751,"url":"https://www.cve.org/CVERecord?id=CVE-2026-77709"},{"modifiedAt":1793999581193,"name":"NVD","retrievedAt":1794011233919,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77709"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794424192696,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-77709"}],"ssvc":{"assessedAt":1793992911287,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"CVE-2026-77709","updatedAt":1794424192696}