{"id":"CVE-2020-11940","aliases":["DEBIAN-CVE-2020-11940","EUVD-2020-4277","GHSA-h3c2-96hp-53g3"],"status":"published","title":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited...","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01324,"percentile":0.71139,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2020-04-23T14:20:31Z","modified":"2026-10-26T12:01:25Z","fixes":[{"ecosystem":"Debian:12","package":"ndpi","fixed_in":["3.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"ndpi","fixed_in":["3.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"ndpi","fixed_in":["3.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"ndpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4-1"}]}]}],"products":[{"vendor":"ntop","product":"ndpi"}],"references":[{"url":"https://github.com/ntop/nDPI/commit/3bbb0cd3296023f6f922c71d21a1c374d2b0a435","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://securitylab.github.com/advisories/GHSL-2020-051_052-ntop-ndpi","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11940"},{"url":"https://github.com/advisories/GHSA-h3c2-96hp-53g3"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-11940","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-11940","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2020-04-23T14:20:31Z","modified":"2024-08-04T11:42:00.974Z","updated_at":"2026-11-02T14:35:57.67317Z"}],"euvd":[{"id":"EUVD-2020-4277","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2020-04-23T14:20:31Z","modified":"2024-08-04T11:42:00Z","updated_at":"2026-11-03T03:07:41.956166Z"}],"ghsa":[{"id":"GHSA-h3c2-96hp-53g3","title":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited...","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2022-05-24T17:16:16Z","modified":"2023-01-29T05:02:27Z","updated_at":"2026-11-02T14:45:05.277553Z"}],"nvd":[{"id":"CVE-2020-11940","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2020-04-23T15:15:14.153Z","modified":"2026-06-17T02:51:05.9Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:05:59.718774Z"}],"osv":[{"id":"CVE-2020-11940","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2020-04-23T15:15:14.153Z","modified":"2026-10-20T13:44:52.591935342Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"DEBIAN-CVE-2020-11940","description":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","status":"published","published":"2020-04-23T15:15:14.153Z","modified":"2026-10-26T12:01:25.084196024Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.862554Z"}]}}