---
cve: "CVE-2026-76860"
severity: "HIGH"
cvss: 8.7
epss: "0.4%"
vendor: "Netcore"
kev: false
exploited: false
published: "2026-09-15 21:57:54"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:13:09+02:00"
---

# CVE-2026-76860

> 8.7 HIGH · 🧪 PoC

## Beschreibung

Netcore NR255-V version 1.5.130703 contains a stack-based buffer overflow in wake_up_set.cgi caused by unbounded tokenization of MAC and ID input. Attackers can supply crafted MAC and ID values to the affected endpoint to overflow the stack buffer and corrupt program memory.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-wake-up-set-overflow.md>
- <https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stack-based-buffer-overflow-in-wake-up-set-cgi-via-mac-and-id-tokenization>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-76860) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_