---
cve: "CVE-2026-16225"
severity: "MEDIUM"
cvss: 5.3
epss: "23%"
vendor: "davenardella"
kev: false
exploited: false
published: "2026-07-19 09:17:01"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T16:20:39+02:00"
---

# CVE-2026-16225

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7_peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

## CVSS-Vektor

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

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

## Referenzen

- <https://vuldb.com/vuln/380047>
- <https://vuldb.com/vuln/380047/cti>
- <https://vuldb.com/cve/CVE-2026-16225>
- <https://vuldb.com/submit/858228>
- <https://github.com/davenardella/snap7/issues/17>
- <https://github.com/davenardella/snap7/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16225) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_