{"id":"CVE-2026-86098","title":"ntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpi_json_string_escape function that writes beyond caller-supplied buffer boundaries","summary":"ntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpi_json_string_escape function that writes beyond caller-supplied buffer boundaries. Attackers can trigger the overflow by supplying crafted network pack…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-787"],"vendor":"ntop","product":"nDPI","affected":["nDPI < 6.0"],"published":"2026-09-04","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:46.867","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86098","references":[{"url":"https://github.com/ntop/nDPI","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ntop/nDPI/blob/5.0/src/lib/ndpi_serializer.c","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ntop/nDPI/commit/94e82c1de12323d992895830231865736a8abf2c","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/ntop-ndpi-before-6.0-heap-buffer-overflow-via-ndpi-json-string-escape","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"epss":0.00353,"epssPercentile":0.29027,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T19:21:21.144482Z"},"ingestedAt":"2026-09-14T20:14:21.168Z","slug":"CVE-2026-86098","body":"## Overview\n\nntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpi_json_string_escape function that writes beyond caller-supplied buffer boundaries. Attackers can trigger the overflow by supplying crafted network packet data including TLS SNI, HTTP headers, or DNS names that reach the vulnerable function, causing heap corruption.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}