CVE-2026-86098

ntop nDPI before 6.0 Heap Buffer Overflow via ndpi_json_string_escape

Published Sep 4, 2026 CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title ntop nDPI before 6.0 Heap Buffer Overflow via ndpi_json_string_escape
First Time appeared Ntop
Ntop ndpi
Weaknesses CWE-787
CPEs cpe:2.3:a:ntop:ndpi:*:*:*:*:*:*:*:*
Vendors & Products Ntop
Ntop ndpi
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 8.3, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 14, 2026, 7:33 PM
Reserved
Sep 4, 2026, 10:17 PM
Status
Deferred
Published
Sep 4, 2026, 11:18 PM
Modified
Sep 23, 2026, 5:17 PM