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.

Scoring

Severity
HIGH
CVSS base score
8.3
CVSS vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS probability
0.35%
CWE
CWE-787
Published
2026-09-04
Last modified
2026-09-14

Affected products

Weakness type

Related vulnerabilities

Markdown version · Browse all CVEs