{"id":"CVE-2026-116744","title":"ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector","summary":"ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-125"],"vendor":"ntop","product":"nDPI","affected":["nDPI <= 6.0"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T21:52:42.875Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116744","references":[{"url":"https://github.com/ntop/nDPI/pull/3298","label":"Pull Request #3298"},{"url":"https://github.com/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2","label":"Patch Commit"},{"url":"https://github.com/ntop/nDPI"},{"url":"https://github.com/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203"},{"url":"https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read"},{"url":"https://github.com/ntop/nDPI/issues/3291"},{"url":"https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector","label":"VulnCheck Advisory: ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector"}],"tags":["cve.org"],"epss":0.00431,"epssPercentile":0.37198,"ingestedAt":"2026-10-27T16:11:59.125Z","slug":"CVE-2026-116744","body":"## Overview\n\nntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.\n\n## Affected\n\n- `nDPI <= 6.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}