---
cve: "CVE-2026-86509"
severity: "CRITICAL"
cvss: 9.6
epss: "58.8%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-08 01:17:55"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T23:38:32+02:00"
---

# CVE-2026-86509

> 9.6 CRITICAL

## Beschreibung

A flaw has been found in D-Link DIR-895L A1_102b07. This impacts the function sendOffer/sendACK of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack can only be done within the local network. The exploit has been published and may be used.

## CVSS-Vektor

```
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0>
- <https://vuldb.com/cve/CVE-2026-86509>
- <https://vuldb.com/submit/906298>
- <https://vuldb.com/vuln/399662>
- <https://vuldb.com/vuln/399662/cti>
- <https://www.dlink.com/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86509) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_