{"id":"CVE-2026-3439","state":"PUBLISHED","title":"A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall.","description":"A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall.","publishedAt":"2026-03-04T09:19:45.392Z","updatedAt":"2026-03-04T16:05:54.854Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"sonicwall","products":["SonicWall SonicOS"],"affected":[{"vendor":"SonicWall","product":"SonicOS","defaultStatus":"unknown","versions":[{"version":"7.0.1-5169 and older versions","status":"affected"},{"version":"7.3.1-7013 and older versions","status":"affected"},{"version":"8.1.0-8017 and older versions","status":"affected"}],"platforms":["Linux","Gen7","Gen8"]}],"references":["https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3439.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3439","state":"PUBLISHED","datePublished":"2026-03-04T09:19:45.392Z","dateUpdated":"2026-03-04T16:05:54.854Z","assignerShortName":"sonicwall","assignerOrgId":"44b2ff79-1416-4492-88bb-ed0da00c7315","dateReserved":"2026-03-02T13:59:15.773Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall."}],"affected":[{"vendor":"SonicWall","product":"SonicOS","defaultStatus":"unknown","versions":[{"version":"7.0.1-5169 and older versions","status":"affected"},{"version":"7.3.1-7013 and older versions","status":"affected"},{"version":"8.1.0-8017 and older versions","status":"affected"}],"platforms":["Linux","Gen7","Gen8"]}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001","tags":["vendor-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"sonicwall","orgId":"44b2ff79-1416-4492-88bb-ed0da00c7315","dateUpdated":"2026-03-04T09:19:45.392Z"},"datePublic":"2026-03-04T09:07:00.000Z","source":{"advisory":"SNWLID-2026-0001","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-04T16:05:44.553615Z","id":"CVE-2026-3439","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-04T16:05:54.854Z"}}]}}}