CVE-2026-86098
CVE-2026-86098
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 packet data including TLS SNI, HTTP headers, or DNS names that reach the vulnerable function, causing heap corruption.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-86098?
- CVE-2026-86098 is a high-severity vulnerability, classified under Out-of-bounds Write. CVSS score: 7.4/10. Published 2026-09-04.
- How severe is CVE-2026-86098?
- High severity. CVSS v3 base score is 7.4 out of 10.