{"id":"CVE-2026-79896","state":"PUBLISHED","title":"Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability","description":"Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption.","publishedAt":"2026-10-01T15:09:21.099Z","updatedAt":"2026-10-01T16:02:49.186Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"Fortra"},"assigner":"Fortra","products":["Fortra BoKS Manager"],"affected":[{"vendor":"Fortra","product":"BoKS Manager","defaultStatus":"unknown","versions":[{"version":"8.1.0.0","status":"affected","lessThanOrEqual":"8.1.0.23","versionType":"custom"},{"version":"9.0.0.0","status":"affected","lessThanOrEqual":"9.0.0.6","versionType":"custom"}],"modules":["boks_portmux"]}],"references":["https://www.fortra.com/security/advisories/product-security/fi-2026-016"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/79xxx/CVE-2026-79896.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-79896","state":"PUBLISHED","datePublished":"2026-10-01T15:09:21.099Z","dateUpdated":"2026-10-01T16:02:49.186Z","assignerShortName":"Fortra","assignerOrgId":"df4dee71-de3a-4139-9588-11b62fe6c0ff","dateReserved":"2026-08-25T14:50:07.493Z"},"containers":{"cna":{"title":"Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability","descriptions":[{"lang":"en","value":"Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption."}],"affected":[{"vendor":"Fortra","product":"BoKS Manager","defaultStatus":"unknown","versions":[{"version":"8.1.0.0","status":"affected","lessThanOrEqual":"8.1.0.23","versionType":"custom"},{"version":"9.0.0.0","status":"affected","lessThanOrEqual":"9.0.0.6","versionType":"custom"}],"modules":["boks_portmux"]}],"references":[{"url":"https://www.fortra.com/security/advisories/product-security/fi-2026-016"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125 Out-of-bounds read","type":"CWE"}]}],"providerMetadata":{"shortName":"Fortra","orgId":"df4dee71-de3a-4139-9588-11b62fe6c0ff","dateUpdated":"2026-10-01T15:09:21.099Z"},"impacts":[{"capecId":"CAPEC-125","descriptions":[{"lang":"en","value":"CAPEC-125 Flooding"}]}],"workarounds":[{"lang":"en","value":"Until a fixed release is installed, restrict network access to boks_portmux listeners to trusted systems.","supportingMedia":[{"type":"text/html","base64":false,"value":"Until a fixed release is installed, restrict network access to boks_portmux listeners to trusted systems."}]}],"solutions":[{"lang":"en","value":"Upgrade to boks-server 8.1.0.24 or boks-server 9.0.0.7.","supportingMedia":[{"type":"text/html","base64":false,"value":"Upgrade to boks-server 8.1.0.24 or boks-server 9.0.0.7."}]}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T16:02:42.850473Z","id":"CVE-2026-79896","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T16:02:49.186Z"}}]}}}