{"id":"UBUNTU-CVE-2026-116744","details":"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 datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.","modified":"2026-10-28T20:17:46.319816818Z","published":"2026-10-26T22:16:00Z","upstream":["CVE-2026-116744"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116744"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116744"},{"type":"REPORT","url":"https://github.com/ntop/ndpi"},{"type":"REPORT","url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116744.json"},{"type":"REPORT","url":"https://github.com/ntop/ndpi/blob/6.0/src/lib/protocols/softether.c#l203"},{"type":"REPORT","url":"https://github.com/ntop/ndpi/commit/ca9d819151606377ac53305583fe819748c69be2"},{"type":"REPORT","url":"https://github.com/ntop/ndpi/issues/3291"},{"type":"REPORT","url":"https://github.com/ntop/ndpi/pull/3298"},{"type":"REPORT","url":"https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read"},{"type":"REPORT","url":"https://nvd.nist.gov/vuln/detail/cve-2026-116744"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector"}],"affected":[{"package":{"name":"ndpi","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.0-1","1.6-1","1.7.1~git20151130.6f3d5a7-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"1.7.1~git20151130.6f3d5a7-1"},{"binary_name":"libndpi3","binary_version":"1.7.1~git20151130.6f3d5a7-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","2.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"2.2-1"},{"binary_name":"libndpi-wireshark","binary_version":"2.2-1"},{"binary_name":"libndpi5","binary_version":"2.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6-4","2.6-5"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"2.6-5"},{"binary_name":"libndpi-wireshark","binary_version":"2.6-5"},{"binary_name":"libndpi2.6","binary_version":"2.6-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0-4","4.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"4.2-2"},{"binary_version":"4.2-2","binary_name":"libndpi-wireshark"},{"binary_name":"libndpi4.2","binary_version":"4.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2","4.2-2.1","4.2-2.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"4.2-2.1build1"},{"binary_name":"libndpi-wireshark","binary_version":"4.2-2.1build1"},{"binary_name":"libndpi4.2t64","binary_version":"4.2-2.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"4.2-2.1build2","binary_name":"libndpi-bin"},{"binary_name":"libndpi-wireshark","binary_version":"4.2-2.1build2"},{"binary_name":"libndpi4.2t64","binary_version":"4.2-2.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116744.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1build1","4.2-2.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libndpi-bin","binary_version":"4.2-2.1build2"},{"binary_version":"4.2-2.1build2","binary_name":"libndpi-wireshark"},{"binary_name":"libndpi4.2t64","binary_version":"4.2-2.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blo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