---
cve: "CVE-2026-116744"
severity: "MEDIUM"
cvss: 6.9
epss: ""
vendor: "ntop"
kev: false
exploited: false
published: "2026-10-26 22:16:58"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-30T08:24:27+01:00"
---

# CVE-2026-116744

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-26 21:52:42
- CNA-CVSS: **6.9** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-125** — Out-of-bounds Read
  The product reads data past the end, or before the beginning, of the intended buffer.

## Angriffsmuster (CAPEC)

- [CAPEC-540 — Overread Buffers](https://capec.mitre.org/data/definitions/540.html) _(Severity: High)_

## Patch verfügbar (OSV)

- ca9d819151606377ac53305583fe819748c69be2 (Commit)

## Referenzen

- <https://github.com/ntop/nDPI/pull/3298>
- <https://github.com/ntop/nDPI/commit/ca9d819151606377ac53305583fe819748c69be2>
- <https://github.com/ntop/nDPI>
- <https://github.com/ntop/nDPI/blob/6.0/src/lib/protocols/softether.c#L203>
- <https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read>
- <https://github.com/ntop/nDPI/issues/3291>
- <https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-116744/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_