nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
History

Sat, 26 Sep 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 26 Sep 2026 05:30:00 +0000

Type Values Removed Values Added
Title DNS Packet Parsing Alignment Violation Leading to Denial of Service in nDPI 5.1.0

Fri, 25 Sep 2026 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Ntop
Ntop ndpi
Vendors & Products Ntop
Ntop ndpi

Thu, 24 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1335
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Thu, 24 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
Description nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-24T00:00:00.000Z

Updated: 2026-09-24T17:53:09.601Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88357

cve-icon Vulnrichment

Updated: 2026-09-24T17:53:02.984Z

cve-icon NVD

Status : Deferred

Published: 2026-09-24T16:17:12.957

Modified: 2026-09-24T21:08:55.030

Link: CVE-2026-88357

cve-icon Redhat

No data.