{"id":"CVE-2026-116744","aliases":["DEBIAN-CVE-2026-116744","EUVD-2026-110492","GHSA-gpg3-522v-2frf","UBUNTU-CVE-2026-116744"],"status":"published","title":"ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector","description":"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.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00431,"percentile":0.37834,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-26T21:52:42Z","modified":"2026-11-01T07:03:47Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2","4.2-2.1","4.2-2.1~exp1"]},{"source":"osv","ecosystem":"Debian:13","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1"]},{"source":"osv","ecosystem":"Debian:14","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.0-1","1.6-1","1.7.1~git20151130.6f3d5a7-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","2.2-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6-4","2.6-5"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0-4","4.2-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2","4.2-2.1","4.2-2.1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1build1","4.2-2.1build2"]}],"products":[{"vendor":"ntop","product":"ndpi"}],"references":[{"url":"https://github.com/ntop/nDPI/pull/3298","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2","tags":["patch","fix"]},{"url":"https://github.com/ntop/nDPI","tags":["product","package"]},{"url":"https://github.com/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203","tags":["technical-description","article"]},{"url":"https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read","tags":["third-party-advisory","advisory","report"]},{"url":"https://github.com/ntop/nDPI/issues/3291","tags":["issue-tracking","report"]},{"url":"https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116744","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gpg3-522v-2frf"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116744.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-116744","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-116744","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116744","tags":["report"]},{"url":"https://github.com/ntop/ndpi","tags":["report"]},{"url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116744.json","tags":["report"]},{"url":"https://github.com/ntop/ndpi/blob/6.0/src/lib/protocols/softether.c#l203","tags":["report"]},{"url":"https://github.com/ntop/ndpi/commit/ca9d819151606377ac53305583fe819748c69be2","tags":["report"]},{"url":"https://github.com/ntop/ndpi/issues/3291","tags":["report"]},{"url":"https://github.com/ntop/ndpi/pull/3298","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/cve-2026-116744","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-116744","title":"ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector","description":"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.","status":"published","published":"2026-10-26T21:52:42.875Z","modified":"2026-10-31T02:01:54.934Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:20:03.827373Z"}],"euvd":[{"id":"EUVD-2026-110492","description":"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.","status":"published","published":"2026-10-26T21:52:42Z","modified":"2026-10-31T02:01:54Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:59:01.198534Z"}],"ghsa":[{"id":"GHSA-gpg3-522v-2frf","title":"ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn...","description":"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.","status":"published","published":"2026-10-27T00:32:49Z","modified":"2026-10-27T00:32:54Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:14:27.349207Z"}],"nvd":[{"id":"CVE-2026-116744","description":"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.","status":"published","published":"2026-10-26T22:16:58.963Z","modified":"2026-10-31T03:17:16.893Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:13:03.746397Z"}],"osv":[{"id":"CVE-2026-116744","title":"ntop nDPI through 6.0 Out-of-Bounds Read in SoftEther Dissector","description":"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.","status":"published","published":"2026-10-26T21:52:42.875Z","modified":"2026-11-01T07:03:47.362404606Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:44:56.675758Z"},{"id":"DEBIAN-CVE-2026-116744","description":"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.","status":"published","published":"2026-10-26T22:16:58.963Z","modified":"2026-10-31T10:00:46.002769017Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:50.923612Z"},{"id":"UBUNTU-CVE-2026-116744","description":"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.","status":"published","published":"2026-10-26T22:16:00Z","modified":"2026-10-28T20:17:46.319816818Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.081948Z"}]}}